Board Thread:Naruto Discussions/@comment-45206595-20200311224438/@comment-45206595-20200313130142

If she only waited 1 minute or even less obito could have reached them .( ofcourse she didnt know obito was on his way ).

Her seeing obito might change her mind on suiciding.

You can say it was also minato fault not sharing that he know sealing talied beast jutsu.

If she knew minato could seal it and help she wouldn't have to suicide.

So it was minato fault at the end.