I really don't like the Pregen protagonist concept at all in a BG game, for most of the reasons listed above. It really feels like an attempt to skip over the most core part of D&D, which is character creation, just to appeal to a casual action game audience who can't be bothered to put in the time on the front end. As if it's there just for pick up play.
They could easily create interesting unique pre-gen characters for that crowd even without going all in on Origin characters. That could be a nice way to ease new players into D&D and into making their own characters.
