Hmm. I don't really see what you're saying. It's kind of hard to tell with the people walking right in front of it, though. Not sure why the head would be made into separate elements, but one of the complaints people had about the 1.0 was that the head was a bit too disconnected and floaty. So maybe if it's still hand-animated, it's an attempt to give the snout more dimension.
edit: I can't tell if it moves perfectly with the head, but the nostril certainly moves a good deal.