Board Thread:Episode Discussions/@comment-1251315-20161013111826/@comment-24824859-20161020012626

Yet, they still came. Naruto and Sasuke were kicking Momoshiki's ass with medium effort and would of killed him earlier had it not been for Katasuke. I mean, all it took to kill Momoshiki was a big-ass Rasengan, which a base Naruto can easily make, even while drained and incapacitated by black receivers.

Why wouldn't Hagoromo thought of Naruto using up the chakra of the other Tailed Beasts? The dude anticipated that the majority of Indra's descendants will be power-hungry, so he inscribed a warning on what is now the Uchiha Stone Tablet. He gave Naruto and Sasuke SPSM and the Rinnegan along with the Six Paths Yang and Yin Seals, knowing that they'll need an extraordinary power-up in order to seal Kaguya. So explain why wouldn't he expect Naruto to use up the chakra of the other Tailed Beasts.