So let's recap.
The POTUS meets the players and coaches before the presentation. Probably puts them at ease because that's the type of personality he has (after all he challenged Maya to a game of one on one last time).
They go out on stage. The POTUS gives his presentation. Jokes with the players ("mm-hmm") and gives a Z-snap. Then it comes time for the pictures. Everyone poses with smiles, then the POTUS turns to the players and says "Just no bunny ears". A few seconds later he turns back and says "Ok, go ahead!".
What if no one had taken him up on that? It would have been humiliating for him to invite the players to take part in the fun, only to have them stand there like frozen statues. I still can't for the life of me understand why a few crazed fans are so out of control on this.
And the only people referring to "demon horns" are people in this thread and a couple of blogger type comments. I went and looked at every article I could find on the subject (yes I "goggled" it) and not a single one referred to the players as being an "embarrassment", or "immature", or "stupid". Theyim done all referred to it as lighthearted, fun, etc.
Sadly, you are still hysterical over this whole thing and can't seem to keep your mouth shut. Stop embarrassing yourself. Please - for your own sake!