Tbh a lot in BG 1&2 was edgy as hell too including the plot point combining Durge and Gorions Ward ( I mean did anyone not anticipate what the Durges deal was knowing the lore of the first two games?)
And I'm ok with Durge being there and I actually made one and probably will play her at some point, but it is very specific and not everyone wants that.
I'm glad they offer us both Tav and Durge, so everyone can be happy.
I think it is pretty clear with Durge what you will have to work with, if you click on their introduction, so I wasn't surprised about some events. But as I said before, I have to be in the mood for that kind of character.
Well, it's your subconscious edgy, not you. And due to your amnesia you actually can be a new you.
Sure, original BG protagonist wasn't actual Chosen of Bhaal. But still a Bhaal spawn, who experienced horrible nightmares, intended to break him eventually.