Board Thread:General Discussion/@comment-31255465-20170923034221/@comment-33165688-20171026030144

Angel Bridge,  I think the arc would have been much more enjoyable if certain folks had not tried to shove it down our throat as the "true" ending. I still prefer SAINW, but this arc is OK as some form of an alternate reality. As for confirmation, it depends on who you want it from. If it's Ciro Nieli....no. He wanted it to be the "true" ending, despite the massive continuity errors, substandard writing...and for very dubious reasons. The episode is inherently non-canon, no matter what he or certain fans may say. Nick, fortunately, overruled him. If you haven't already looked at their Twitter feed, here you go. :   https://twitter.com/Lit_SwiftGhost/status/912311986486218759

There are also other screencaps of evidence up on Tumblr :)  As Fishface405 has said, Nick has indeed confirmed that it is non-canon.  I just wish more people recognized that, to be honest. I'm amazed by how many still care what Nieli thinks, after he openly tried to torch the series for the reasons he did (just so other people wouldn't touch "his" toys) without regard for the fans or the work itself.