User blog comment:MightyMed123/Disney XD - A new Direction?/@comment-27663014-20170430194905/@comment-27044567-20170503231752

Well... yes... they went on that date in Sheep-Shifting, I think it was? And even if it was never explicitly said, we all know that's what the writers intended, no matter how poorly it was executed. So yeah, I consider them to be "official" as of that episode.