Well, I couldn't see any differences between the photos. They appear to be the same photo.
But, "piling on" is a foul, if the ball is clearly dead. We can't know by this picture if the ball is dead, or not. That is why our whistles are SO important. If we get on the whistles as soon as the BC is held and his progress is stopped, then the vast majority of times, any 'extra' stuff is averted. But, we are seeing a cultural change over the past 20 years or so, and defensive coaches, in particular, seem hell bent on teaching their players to do what it takes to attempt to intimidate, if not punish (even to the extent of injury) their opponents, and to hell with whether such actions are 1) legal, or 2) sportsmanlike. Whistles or not, many of these folks are pushing - and exceeding - the limits of rule and sportsmanship, and don't seem to be concerned about any consequences or accountability.
As officials, we must be vigilant is penalizing this kind of behavior, whenever it is presented.
