Board Thread:Naruto Discussions/@comment-32617252-20170726232219/@comment-734582-20170727070826

In the Anime it is suggested that the Otsutsuki clan is still alive and kicking (since at no point was it said or suggested that it's dead). If the Manga also decides to go with this, it means Momoshiki and Kinshiki were just the scouting forces.

Ultimately, Momoshiki and Kinshiki themselves aren't the greater threat, but rather they represent it.