I watched a little bit of it this morning just out of curiousity. Nothing too special, I did find it a bit too strange a Christmas special for it's own good.
I've seen stranger... much, much stranger. A better kind of strange too.
There's just something about new Christmas specials. They seem to miss the mark and repeat exact story lines of better ones. I saw that Hoops and Yoyo Ruin Christmas thing a week ago. It was cute and okay, I guess... nothing absolutely amazing. Of course, I think Disney has gold with the Prep and Landing specials.
Still, you wonder why they made a Christmas special based on a sort of popular song/meme form at least 3 years ago. Sounds like it had the same voice cast as Arthur, too.