Magnificient post, OP! Absolutely +1

I don't care that much about it not feeling like a D&D game. I do care very deeply and passionately about it not feeling like a Baldur's Gate game and not feeling like it is in the Forgotten Realms. Yes it very superficially has all the trappings of a D&D and FR game, but when you scratch that surface just a tiny bit you immediately see D:OS underneath. But I don't need to say anything more. Your post does a superb job of making this case in a very compelling way.