It would be great if you could just create 4 characters at the start of a single player game and then never have to deal with the garbage interactions with the recruitable NPCs.
But would it still be "Baldur's Gate" then?
Making a Tav and then picking from available Companions was part of the (occasionally questionable) charm of the OBG games.
Part of the "BG experience", one might say.
Of course, if Larian did what you are suggesting in five or ten years nobody would remember that "the original BG games were different".