The rumor out there is that this is a Make-A-Wish kid that had cancer. Kinda makes it a little less playful to me. Considering the kid is about 2 feet tall. The ice spray form practically went up to his shoulders.
I don't think even someone as douchey as Ovechkin would something like that without intending it to be funny. He's a drama queen, he needs to have the attention on him 100% of the time. That could explain why the cameras always cut to him on the bench when the Caps score a goal, even though he didn't score and isn't even on the ice.