i think its obv now that sasuke didnt display near his full strentght in that battle. he never used the rinnegans abilities, now hes about to do that and considering its the sharinnegan its gonna be a whole lot powerful. i mean think about it, when kaguya grabbed him to throw him in the desert a full shinra tensei would have freed him from her clautches buh he didnt. he was holding back for this moment.