A lot of people seem to be annoyed by these in-your-face diversity pushes. The craziest examples are remakes with of movies of which the characters were male and are just being afforded a sex change for apparently no reason but diversity.
I think the problem they've got with these things is that they very often look manufactured, or just that they're trying too hard. With that in mind I agree with what you say below, and it has become very political:
You want it to be natural. You want female leads to be more NORMAL - not oddities like original characters with sex changes. People could well become more negative (and if just subconsciously) towards ALL female leads because they are being annoyed all the time with this "tokenism". That's not normalization. That's politics and unnatural.