Perhaps someone doesn't like Christmas. Perhaps it's an attempt to avoid the New Year hangover. Perhaps it's a last-ditch, desperate attempt to prevent the end of the world without using Bruce Willis.
Or perhaps it's just a bug.
It's already been submitted to Android's bug tracker, so hopefully we'll see a fix rather rapidly. We'd imagine that it'd be rather infuriating to receive a Christmas Android that swore the day it was opened didn't exist.