Sorry. Not sure where you're going with that. How is that so much different from the originals? In the first two, it was you and Imoen. So there was still more than just you. In this game, it is you and five others. It's still relatively the same premise.
BG3 is about Larian's NPC's first and foremost and about you second. They are not a supporting cast. It's an oversized ensemble cast where every one of them is legendary and awesome already at level 1. And when everyone is, no one is. And if you like to envision your own level 1 PC as an actual rookie, it hardly makes sense with your companions being so legendary already.
It can work with a single awesome sidekick. In Andromeda, Dylan Hunt was your typical hero but you had one side character, Trance, who could basically manipulate timelines. This did work because you only found out far into the story (before she was just depicted as extremely "lucky") and it was only one character.
But yes, the other characters necessarily had to step back compared to her.
The problem in BG3 is that the origin characters are supposed to be played by you, so they have to be awesome. But of course, if there are so many of them, it gets too much.
Maybe a solution would be to just have ~3 origin side characters and most others "normal" characters. More is not always better or can be added by expansions.
