Board Thread:Theories and Speculation/@comment-26479810-20191214162345/@comment-9782468-20191216180519

I think the main difference is that Naruto and Sasuke retained their gifts from Hagoromo whereas Kakashi didn't keep his gift from Obito.

As in, Kakashi doesn't have Mangekyo anymore, but Sasuke still has his Rinnegan, which is the proof that their power stayed.

Your interpretation is that they still lost Hagoromo's power, even though their powers that were a product of his chakra in the first place.

However this is directly contradicting the case with Kakashi; as soon as Obito's chakra left, so did his power.

So the reasoning is that they must have kept Hagoromo's power if they are still using their abilities that came from his power. You have come up with the alternate theory that they lost his power but kept what they have manifested in themselves (which contradicts Kakashi, who manifested Sharingan in his own eyes but lost them).

Not to say your theory doesn't have merit, but it's never stated that they lost Hagoromo's chakra. It's never stated that they keep it either. So it can be interpreted either way. For power scaling I think your theory makes sense in most cases of Boruto. But based on the story and what I've read, it makes more sense overall that they kept their power. I feel like there would have been some statement saying they lost it if they did. Kishi generally is on the nose with that sort of thing.