Board Thread:Boruto Discussions/@comment-33727162-20171121221649/@comment-30323490-20171123183016

Thekillman wrote:

Vladosaurus wrote: You are not answering my question on why the bijuu were not shown inside Naruto when he received the 2-7 chakra. You claimed that we need to see them inside Naruto to confirm their chakra, yet although Naruto did have their chakra, they were not showing. They didn't show until Hagoromo called them out, the Manga showed this quite clearly. Note that until that point, Naruto was also completely incapable of using that chakra. And once he used up that chakra, neither the biju nor their abilities were shown again.

Naruto was able to use the TB abilities IE their kekkei genkai, because as stated, SPSM grants him "the innate ability to grasp nature of chakra and comprehend all universal things".That's why he wasn't able to use their abilities prior of his gaining SPSM. And Naruto still has SPSM, and all of the chakra natures. The Bijuu were not developing the jutsu for Naruto. Naruto just used their chakra, that he still posses util this day.