I've played through the revamped game multiple times now, and I have to say - I love what you've done with it. Full stop. There's a lot of people who WANT to interact with this sort of media, for multiple reasons, including processing their own trauma in a safe, fully controlled way.
The critics are vocal, but I have to say, if they think Sol is ooc here? Not a chance. You show very clearly he's extremely messed up from day one. Just because he can mask it well doesn't mean he's truly a sunshine babygirl. He's not. He's an absolute yandere - which is valid and great.
Fanon Sol /= Canon Sol. Both can exist. Just don't expect the creator to wedge THEIR vision into YOUR fantasy.
Just because something makes an individual uncomfortable, doesn't mean they get to dictate it to anyone else.
All that beings said - Excellent game. I hope it doesn't stray from the vision the creator has in place.