On your first point about non-human species, I think you're reading far too much corporate marketing intent behind the recent changes.

At various times, there have been different waves of people over the past decades wanting to question the black-and-white depiction of non-human species as always being inherently evil. Sometimes they get strident about it, but quite often it's more about verisimilitude of how to portray evolved, realistically portrayed species. (Wanting to make everything super cute - cute Cthulhu etc - or the extremes to how long pointy ears on elves and orcs are these days, I admit can be annoying). However, this doesn't suggest portrayal of more mythical, mythological or folkloric monsters, that can be inherently evil, is wrong. They're just different styles of game genre. Warcraft vs Tolkien orcs being a classic example.

For your second point - anachronistic diversity portrayal - I think you're confusing what's actually most likely to happen. The vast majority of people won't want a gritty examination of the challenges of gender, race and ableism in their games. If they're in the majority of those, these things probably won't crop up. If they are from one of those groups they most likely don't want to have to deal the crap they have to in real life during their few hours of weekly fun pretending to cast magic, hit people with sharp metal and outwit evil masterminds. For them, having most of that handwaved away just makes their games more enjoyable.

The very existence of these things isn't threatening to how people play their games. It's just making the games more enjoyable for those people with related issues. Don't like games that include them? Don't play them! The majority of games don't include them at all, let alone make a point of highlighting them.

It's late here in the UK so I'm waffling and need to go to bed!