I think you guys are overlooking the biggest factor of all: it is a D&D game. For years and years after the release of the final expansion for NwN2, the legions of D&D fans were, on every single RPG gaming forum, bemoning and griping about the lack of a *quality* D&D videogame.
Kingmaker, WotR and Solasta are quality DnD games. Arguably even better DnD games than BG3 (Especially since they are more true to actual DnD rules compared to Larian and their excessive homebrew)
So... Why didn't they become as successful as BG3 if the main factor was simply "Being a DnD game"?
So when finally we get a D&D videogame, and it is in the highly popular 5e of D&D
Ironically, most DnD players I've heard, are often pining for 3.5e over 5e or at the very least, bemoaning 5e due to it's "Simplicity".
