Every 1st round draft selection at the QB position is unique in the style O that was run at the college level, the supporting cast, the caliber coaching, and opposition they faced IMO. Every rookie QB destination is also unique making it a case by case decision on the best course of action to follow by way of development in my humble opinion.
My reservations of starting Josh Allen early on has much to do with Allens supporting cast/Oline protection Buffalo can provide combined with the new Offensive system installation.