Board Thread:Episode Discussions/@comment-25787298-20160519120227/@comment-28445617-20160520225420

Before, we just accepted the fact that the tree grew from the blood of the fallen and Hagoromo was simply born with the Rinnegan. Although it honestly doesn't make sense with the info we had before because why would there be only one tree? Why not multiple? If a tree existing on a planet prevents another one for growing, sure, but technically the tree didn't exist anymore, now in the form of the Gedo Statue and possibly distributed bit by bit in all the tailed beasts. And if it grows from the blood of the fallen, why wouldn't there be more growing considering all the wars there's been since Kaguya's time. Now we have an explanation that it came from somewhere, whether intentionally sent by the Otsutsuki or not is still unknown.

As for Hagoromo, why would he be born with the Rinnegan and not his brother? Just random genetic distribution or chakra distribution during their development? Of course now we know he wasn't born with the Rinnegan and that it wasn't a "handed down" trait from his mother's Rinne-Sharigan, not directly anyway.

Therefore, I would argue that these fillers with their added details to the series actually explain some questions we've had and yet leaves some mystery to wonder about. Overall a positive addition, in my opinion.