Board Thread:Episode Discussions/@comment-25319479-20160526105603/@comment-1783334-20160526193916

They probably could have worked on the Ten-Tails more in its sealing to make it fit with the manga, but probably did not want to annoy fans with more fillers.

Also, mothers are usually never happy about children leaving the nest, it's called Empty Nest Syndrome. Fathers on the other hand, they're dancing out of joy.