The problem with the videos is that the angles aren't good enough to show what was exactly happening to Alston. Judging by his position after the dunk Maxiell might've jumped over Alston or landed on his back. I'm guessing from a different angle it would look sort of like the T-Mac dunk on Shawn Bradley from the 2005 playoffs.
when a short dude is bending to get out of the way and was likely never looking at the dude jumping, i'd say it's not poster-worthy.. and not thread-worthy