The existence of mods is one thing that placates me about the character generator in BG3. That and the familiarity with RPGs with a much worse example of this thing (take Solasta. Love the game (!) but when we talk about their characters "atrocious" is a compliment).
The games are not supposed to rely on modders to fix things, but... well, modders do exist (many thanks to these wonderful people!) and if the game provides some good foundation that mods can expand on, I feel like developers have done their job, and can concentrate on more urgent stuff (fixing bugs, for example). The foundation we have is solid enough. Should developers simply add a few cosmetic adjustments (unlocking more face/heads areas for manipulations) - I, personally, would have nothing more to wish for.
All you are saying, Black_Elk is very true and I wish one day a game like that would come out (DAI was close). Just not sure BG3 can (or - sorry! - even need) be the one. Too many broken things need to be fixed before the game can allow itself more luxury features.