Simply put, I am VERY happy this happened finally. I never thought I'd ever see something like this not in what supposed to be a kids show. so I lift my hat tot he Nick and the creators, especially the creators, in being brave enough to do this, although it didn't too far, which I suspected to be one of Nicks conditions, still, it was I feel a move in the right direction.
WELL DONE BRYAN & MIKE, WELL DONE, while I would have liked for them to carry on with the show, the way they ended it was not only brilliant, brave, but also beautiful.
For those wanting more confirmation
Here is what the creators post on their Blog or Tumblr