I don't care what the character creation rules are as long they're consistent among the NPCs. Which they're not. That's what I don't like.
Check out someone like Roland, for instance. He's a level three tiefling wizard with an Int of 18. Or the human druid Jeorna, also level three, and with an 18 Wis.
They're clearly not following the same rules as the PCs. It bothers me.
It is annoying. I never thought DnD to be a great system gameplay wise, but I thought its strength is an ability to express characters through its systems. Honestly, same thing annoyed me in Kingmaker - some enemies arbitrary buffed based on developers desire for tough encounter, without an in universe explanation. I feel stats is something Larian just doesn't expect many player to be that concerned about. Like in D:OS, they try to make BG3 more about active abilities and enviroment interactions rather then stat rolls.