I guess it's time to jump in.
IMHO, the photographer was trying to ramp up his "Been there, done that" credibility.
After reading some of the posted comments, I can certainly appreciate the perspective of some that the world is a 360 degree fight and that circumstances may develop that cause either you or innocent bystanders to be in the line of fire. The real question is how do we take the skills needed in a 360 degree fight and bring them to the 180 degree square range. Standing downrange while someone shoots live ammunition by or near you is one method, but it is also reserved for the highest skill level practioners. Short of actually being shot while wearing body armor, there is no higher level of training. The fact that it is reserved for only the highest levels of training shows the level of respect that most instructors/trainer have for the drill.
In the video, the photographer wasn't conducting training, he was trying to get a cool picture, nothing else. To put those two students, who, in my opinion, were clearly not comfortable and based on the video, were not highly skilled practioners, in that position is highly irresponsible. It was done, quite stupidly, as a way to enhance the instructors ego and "tactical" credentials.
All instructors have two primary responsibilities. One, to provide the most realistic training possible and two, to provide that training in the safest possible manner. As the realism of training increases, the danger associated with it also increases. Realistic firearms training is dangerous. As instructors, we should constantly ask ourselves, Is there a safer way to accomplish the type of training we want to provide. In this case, there are many ways to accomplish what the photographer wanted. Remote camera's, dummy rounds, a more controlled environment, etc.
This was nothing more than a stunt. Stunts are cool to watch, when the work. When they go wrong, people get seriously hurt or killed.
Things worked out this time, but eventually the odds will catch up with you.
USSA-1