True. Lord seventh is always nerfed but naruto didn't have enough bijuu chakra to use his mos powerful attack,the super tailed beasts rasenshuriken. Well,i don't blame kishi since sasuke would have died miserably,if naruto used it.
OP, is right. At any time Naruto could recreate that jutsu or a stronger version. While Sasuke can only create that jutsu if he has all the tail beast chakra.
Naruto was nerfed more than Sasuke. The entire battle Naruto let Sasuke attack first than countered using just enough power to deal with Sasuke's attack.