Firstly, what makes you say films of these directors have no point? Maybe you just can't get and feel them. Besides even if there's no point in these pictures I can't understand why some people abhor style over substance films so much.
Secondly, how ignorant is it to say what certain directors should do. You don't know their intentions and they won't change their art only because some people dislike it. Art is art and movies are art. Films are not only about a linear storytelling, but also mood, pace, cinematography, music, directing and many other things.
Thirdly, what "not normal" movies do you like, may I ask?
Indeed. Tongo's school of though in film criticism is: If the film doesn't tell a story, and tells it clearly, it is not good. While I would agree that most great films have plots (because, statistically, 95% of all films are plot driven, hence, most great films tend to be plot driven), not all films need to have a clearly defined plot (The Mirror, completely plotless, is in my top 20, for instance, Persona, a bit less radical but still quite crazy, is in my top 30).
I read in the Ghibliblog that this preference for logical films among American film fans (since many of Miyazaki's films don't make sense, specially his late ones, Spirited Away, Howl's and Ponyo, have plots that are full of holes, Ghibli fans also like those non-logical films, My Neighbor Totoro doesn't have a plot even) maybe is fundamentally derived from the strict logical tradition of western civilization, that less logical stuff is more compatible with an Asian mindset. Although most anime is very much like most hollywood films in being strictly logical and well defined (maybe the product of a westernized and scientific modern Japan).
Modern art tends to favor the less rational in opposition to the crystal clear as well. Stuff like Mulholland Dr., while it's true it has some plot, it's not clearly presented if compared to traditional films (even Lynch's Dune, a film with a clearly presented but very complex plot).