Well, I've never really bought into this approach anyway. Sure, Batman is about symbolism, but I think it's sort of high-falutin' and egotistical that Nolan has Bruce/Batman talk about it several times in both films. It's like he's focused on being a symbol rather than simply being something to fear, which I think would be the closer goal of Batman. (In other words, Batman wouldn't aspire to be the symbol. He aspires simply to be feared, and the persona he creates to serve that practical need becomes the symbol, even if he never intended it to be.) I get that they have to slam the "he's a symbol" point over the head for most audiences, hence the many dialogue references to it. But for me, it's too much telling.
Well, reasonable people can disagree about how much they should spell these things out. But the point I was making is that it's a deliberate choice that the entire trilogy is sort of based around. Whether or not the execution is always ideal is another matter, though personally I think it strikes a pretty nice balance. When they talk about it more in TDK, it's in a different context that encapsulates and expands on the ideas in the first.
I don't know enough about the comic books to know whether or not there's a meaningful distinction to Batman wanting to be feared and Batman wanting to be a symbol that people fear. If that's a tweak from the source, it's one I think is pretty sensible and subtle.
Also, I'm not sure I agree that he needs to be over-the-top. From the criminal perspective, he absolutely is. But when we're privvy to him kicking around a crime scene alone or testing theories in the Batcave, shouldn't he be... well, less of a growly stage performance?
I don't think he talks in growls except when he's in front of people who don't know who he is. Might be a bit much in front of Gordon, but it's usually for the benefit of someone. Even so, I can't imagine this is a big problem even when it bugs people. It happens once or twice.
Maybe he learns in the sense that the Joker isn't some common criminal he can beat into submission, but even that doesn't show much intelligence on the part of Batman. I get that this is a continuing establishment of the character, as you say, but Batman is supposed to be cunning and brilliant and I have a hard time seeing him completely unprepared for an enemy with even half a brain. Believe me, I'm not advocating that Batman outwit and destroy everyone he encounters. But in Nolan's films, he just seems to have this single-dimensionality to him that sees him grow (or more accurately, act) in reaction to others, and in spite of himself. I would just think that by the time someone like the Joker comes along, Batman would have progressed further than a millionaire vigilante beating up thugs in the street.
I guess it comes down to degree: I don't think it's that the Joker is merely not an idiot, it's that he's brilliant and -- more importantly -- that he's uncompromising and has no obvious self-interest. Wayne is certainly caught off-guard by his intelligence, but it's more that he's initially unable to conceive of a villain who just wants to destroy for the fun of it, or to make some twisted philosophical point. That seems like a pretty straightforward blind spot, because people like the Joker doesn't usually exist in real life. He is a unique threat. He is also brilliant, but it's more the lack of material desire or a singular goal that trips Batman up.
Anyway, why would Batman necessarily have progressed when he's had so little reason to? He's been fighting the mob most of the time.
WARNING: "The Dark Knight" spoilers below
...as much as I like the moral dilemma of the boat scene, I don't know if you can really say Batman does anything by believing the citizens won't blow each other up. The fact that they don't makes him right, but he wasn't in any position to prevent the disaster should he be wrong. He simply lucks out (and part of me believes the convicts would have turned that key).
...as much as I like the moral dilemma of the boat scene, I don't know if you can really say Batman does anything by believing the citizens won't blow each other up. The fact that they don't makes him right, but he wasn't in any position to prevent the disaster should he be wrong. He simply lucks out (and part of me believes the convicts would have turned that key).
Heh, well, we'll never know.

Maybe outwit is the wrong word, but...
WARNING: "The Dark Knight" spoilers below
...going after the Joker instead of the boats is certainly a strategic decision, and it turns out to be the correct one.
...going after the Joker instead of the boats is certainly a strategic decision, and it turns out to be the correct one.
As for outwitting the Joker by neutralizing Harvey, he only learns of it after he apprehends the Joker (again, by brute force). So I think that's one more example of Batman prevailing through reaction to events around him, when he really has the capability to outwit his enemies once in a while.[/spoilers]
WARNING: "The Dark Knight" spoilers below
He apprehends the Joker by brute force, but he FINDS him with the cell phones, which is pretty slick and shows a lot of forward-thinking initiative and ingenuity.
He apprehends the Joker by brute force, but he FINDS him with the cell phones, which is pretty slick and shows a lot of forward-thinking initiative and ingenuity.
Beyond that, I have trouble conceiving of what a non-reactionary Batman would look like. Catching the Joker before he's set up any of his traps? I don't know how these criticisms could be addressed without turning Batman into the kind of unstoppable force we both agree he shouldn't be for the film to have any dramatic weight.
I honestly think 99% of this goes away if you treat the entire trilogy as one big origin story, so that he finishes becoming the Batman we know in the third film, and not before.
It's kinda like the difference between Brett Favre and Tom Brady, if you follow me.

Brett Favre won most of his games through sheer will and luck, fighting for every down and throwing errant passes that somehow saved the day at many the eleventh hour. And that's how he played his entire career. Tom Brady, on the other hand, wins most of his games completely outhinking, outplaying and dismantling his opponents. Sure, he finds himself in the occasional nailbiter too, but he's a smarter player than most and his efficiency has grown and matured from preparation and the ability to anticipate.
All I'm saying is, Nolan's Batman could be a little less Brett Favre and a little more Tom Brady.

Batman is Brett Favre? Take it back. TAKE IT BACK!
I know it sounds like I'm nitpicking. I really take the most issue with Bale's goofy growling, but it does feel to me like Nolan has stymied Batman's intellectual ability because it's more theatrical to make him a burly fighter that has to overcome huge challenges rather than, on occasion, anticipate and neutralize them. That's totally fine. I just wish we'd get something more akin to, say, a mystery, where we see Batman putting things together and figuring things out more than simply punching bodies and swinging from rope lines.
Well, it's definitely more dramatic to have Batman face new challenges each time, so for that reason alone I'm totally fine with it. Particularly when he has a reason to expect this or that, IE: he can bust up the mob largely with force and a little bit of smarts, so that's what he gets particularly good at.
This is not to say I wouldn't love a Batman mystery, by the way. But I'm also very satiated by the surprising ways various gadgets pop up. That's one thing Nolan's done to give the series a surprising feel even when we know who the bad guys are: by not quite telling us what the next gadget is, so that it gets sprung on us in the middle of an action sequence.