This ride could be a capacity for better part of years based boarding groups alone. I don't think people understand the reality of the situation with Disney. better part of years based onRotR won't be doing BG forever. Once it's up and capacity is stable/where they would like it to be, they will presumably move to Stand-by. Bouarding Groups aren't meant to take the place of stand-by forever, it's just sort of an interim solution to get the ride up and running without issue.