Board Thread:Naruto Discussions/@comment-27075290-20160117195039/@comment-4646462-20160212095651

I've said it plenty of times before in similar threads, and I may as well say it again: the only logical explanation behind Naruto's post-Kaguya/Sasuke chakra modes is that Kishimoto just cannot settle on one form. Also, he created SPSM to deal with enemies that he made so powerful that they affect his ability to write in a more proper way to defeat them. There's no use for the full mode after that.