Board Thread:Boruto Discussions/@comment-25192437-20191112175648/@comment-9782468-20191121004550

FlatZone wrote: Momoshiki needed to absorb Kinshiki just to stand an actual chance against Naruto and Sasuke, while Kaguya fought them both plus DMS Kakashi and even then they got lucky and were barely able to seal her thanks to Sakura's random punch. While Boruto with the help from his weakened Daddy was able to kill Momoshiki with a giant Rasengan. I'm pretty damn sure Kaguya wasn't worried about Momo and Kin alone, she knew about Isshiki and Urashiki and the rest of the clan that we haven't seen yet either. I have zero doubts. If you do that's your problem, not mine. Momshiki was kicking Naruto through walls before absorbing Kinshiki, and his firepower was pretty impressive.

Them being able to fight Momoshiki with Kinshiki absorbed while barely standing up to Kaguya could be a result of them getting stronger. Just a thought.

Boruto was just a route for Naruto's power. Sasuke took out Momoshiki's ability to absorb Ninjutsu, so Naruto's Rasengan could take him out.

You having zero doubts about something that isn't actually stated in the series doesn't confirm your theory as fact. You can believe what you want, but it's not like any other theory that doesn't have explicit evidence isn't just as viable.