Board Thread:Naruto Discussions/@comment-1018594-20160409062530/@comment-25122992-20161017210325

Okay, I might've missed that, but doesn't end the fact that recreation of Hagoromo's chakra + near-death state does guarantee you a meeting with his spirit.

Besides, I already said that Hagoromo seemingly began speaking with Naruto/Sasuke even before they were saved by Obito/Kabuto respectivelly - he noted that Naruto's ability/inability to escape their meeting place depends only on the people outside, which means that at this point there was no guarantee they would be saved. So, neither of them has had Hagoromo's completed chakra when their conversation began.