Board Thread:Naruto Discussions/@comment-26773508-20150905054531/@comment-17623-20150906195917

Not sure if this was mentioned before, so I'll just add say it here, it is worth mentioning that the only people who have we've seen not die instantly when their tailed beast was removed was Killer B (who hid inside a chunk of Eight-Tails which kept him going), Kushina and Naruto Uzumaki. The latter two only survived due to their clan's vitality but they were going to die regardless.

Highly doubtful anyone else was aware that a Uzumaki could survive the extraction of a tailed beast (a fact that surprised Tobi) so it isn't much of a plot hole.