Board Thread:Naruto Discussions/@comment-29752445-20160826022014/@comment-25122992-20160827130423

Well, I still have some doubts about the theory of Hagoromo summoning the Gedo Statue, using it to survive the Beasts' extraction and then resealing it again. The fuinjutsu problem is still here. Madara himself stated that he "broke the seal" when he summoned the GM with his Rinnegan, and I think he said it for a reason. If we look somewhat deeper into his words, it means that the Statue summoning isn't a regular summoning and needs to break the integrity of the Moon seal. So it does not go as easy as "summon-use-resummon back".

Six Paths - Chibaku Tensei is an extremely powerful fuinjutsu, thus it wouldn't be so easy to restore it as it was. Could Hagoromo do it alone? Maybe yes, but he surely wasn't in the best condition to do it (being near death + without the Beasts). Also, any disturbance in the Moon seal would be noticed by Hamura and his clan there, whose main task was to keep it intact. When Toneri narrated the history of the Moon Ootsutsuki for Hinata, he never mentioned Hagoromo taking the Statue back briefly, while the Statue being stolen by Madara and the Juubi being revived didn't go unnoticed for his clan. There's also the fact that Hagoromo must've known about the shinobi world of his brother on the Moon, and since the integrity of the seal = the integrity of the Moon and its inhabitants, would he dare to risk his brother's world that much?