I think you misunderstood the point of te article, it's not trying to prove that the scene was fake nor staged, but the photo was digitally edited and not worthy of the award.
Digital editing aside, the scene seems to be quite real as it was covered by multiple news outlets and with different photos. Here is the link from the article to the time's photo (by the Reuters) : http://world.time.com/2012/11/15/a-new-gaza-war-israel-and-p...