If movies and games could be everything, genres wouldn't exist. I'm getting an increasing feeling that BG3 doesn't know what it wants to be and who it's made for.
The reveal trailer introduced us into gruesome body horror which set the mood. And it was great! It was very BG, it was dark and mature as it should be.
The BG saga was not all dark and mature as you portray it. It had some very silly, genre skipping moments too. Remember the woodsman making dark cavern jokes in BG1? It was a reference to, ahem, adult movies actor.
+1
Also, if talking to squirrels were likely to annoy me, I just wouldn't (except in situations where the conversation is likely to be plot-important). I'd regularly prefer a little less edginess in games, but understand that it's often there because it adds to the experience for people who aren't me. In my opinion if folks want AAA amenities, they need to accept that games will need to appeal to folks whose tastes differ from theirs, as well as provide features that they themselves enjoy. The more niche the audience, the more niche the budget has to be.