Board Thread:Episode Discussions/@comment-1181222-20170517110628/@comment-810492-20170517191003

Elveonora wrote: Too bad zero tails is not canon, not one bit.

True, but the anime has precedence with considering characters and events from filler episodes to be canon (such as Naruto's encounter with Utakata). And since the Boruto anime right now isn't based on any manga, they have a lot room for freedom to add whatever they please.