Naruto and Sasuke were able to produce Rikudou chakra before power up ?

[NextGenNinja]

Maybe that's why juubito got damaged? That's probably not it, but meh.

 

[NarutoX28]

I guess my wording was wrong, what I meant is their jutsu's combined produced a technique of EQUIVALENT strength as someone with Hagoromo's chakra.

Because Enton possesses Indra's Yin which is Hagoromo's Yin while BSM RS possesses Ashura's Yang which is Hagoromo's Yang.

Equivalent strength? Perhaps. After all, that combination attack gravely wounded the Juubi and was potent enough for Juubito to use Onmyoudon under duress.

 

[SenseiSama]

Maybe that's why juubito got damaged? That's probably not it, but meh.

That's what I'm saying, a JuubiJin should be immune to everything that isn't Rikudou level. Naruto and Sasuke never awakened Hagoromo's power they they fought him but combining their power gave the same level of damage as Rikudou techs.

It would also justify why Hagoromo's original message was "co-operation" and not "possess the other transmigrant's powers"