These things only seem to become an issue when a show is badly written, or badly acted, has dire direction etc. What then happens is half the room blames the fact a movie or show is junk on wokeness and diversity hiring, and the other half accuses any one criticizing it as racist, sexist etc. And they're often both completely wrong. When a show is done well it's a non-issue. The Expanse is one of the most diverse shows on TV and I don't recall anyone making an issue of it. The current iteration of Doctor Who on the other hand is badly written and acted drivel yet there's a body of opinion that dismisses any criticism as sexist.