Hey, I mean, it's obvious, Santa's reindeer's can fly, Stantler is an obvious reference to one of them, and, he should learn Fly, right? Or at least Bounce, I dunno...
Well, it can learn Bounce....
Maybe look it up....
Even if Stantler is based on that you said, that would be the only reason to Stantler learn Fly.
Also, it wouldn't make sense a reindeer be able to fly, it's not a Flying type and doesn't have wings.