whats with people and wanting epic levels,s eirously the game completley falls apart at that level and has very little to do with a DnD adventure. i personally prefer having a broader set of things to do in lower levels. Reminder that most dnd campaigns dont make it past level 6 or so.
Although you clearly seem to want a P&P experience, not everyone interested in the BG3 game even plays D&D; those that are primarily video games may well have different expectations.
SoA/ToB obviously managed high levels, and MotB was one the most enjoyable D&D video games I can remember, so it is possible to do higher-level games.
Having said that, I'm quite happy with lower levels given the TB-mechanics of 5e might slow down too much at high levels to make a decent video game.