Wizards being a great dip is a bit of a red herring to a discussion - the larger issue to me is how much Sorcerers got buffed and Wizards... not. Together with flexibility always less important in a CRPG than in tabletop, I think Sorcerer will always be better by a considerable margin.

I still loved the original BG 1 + BG 2 without Sorcerers and where you didn't get any spell picks at level up. All spells had to be learned from scrolls, and it was a great way to make treasure exciting for casters.

Also agreed that the game does not need to be balanced around multiplayer guilds. It's clearly intended to be either played single-player or with friends. It's not an MmoRPG or something like that. If you want to play like that go ahead, but I think Larian could spent their working hours better than to balance for it.