User blog comment:LeandroDaVinci/Ultimate Strike II/@comment-26842383-20150403221909/@comment-5264252-20150403223701

In the Steven Universe/Uncle Grandpa crossover, Steven Universe really likes and cares about Uncle Grandpa to the point of his shield activating to protect him, so I don't think he'd team up to diss him. :P

Well, I mean, ERB has done people dissing others they respect and care about, but still...idk, lol.

Plus, the episode was non-canon anyways. xP