Playing BG3 should feel like you're reading an epic fantasy novel. Unfortunately, BG3 has some elements which makes me feel like I'm reading a fairy tale. So, I think that at least these elements should be removed from the game:

Talking to animals and corpses
I have read a lot of fantasy novels, and none of them has a main character who talks to all the animals and corpses he sees. This mechanic gives the game a comedic element, but it takes away epicness from the world and the story.

Witch in a cabin
This storyline is directly from fairy tales, and it should not be part of an epic fantasy story. The biggest problem is that the witch is an empty stereotype, who hurts people because she is evil. Turn her into a sorceress, who has a real background and motives. Also, she should not be completely evil.