I wouldn't say I'm new to Ubisoft, more that they haven't released a game I've been interested in playing since Assassin's Creed: Revelations.
As for day one patches being a necessity for games, I would argue that if a game has major game breaking bugs on final release (AKA launch day) then the game isn't worth playing, much less spending money on.
If a game can't even install on a system that meets its minimum requirements without needing a patch, then I'd say that's a feature not a bug. Since it tells me that I should strongly reconsider purchasing anything from that publisher in the future.