I did not watch it, but did not need to do so, having seen it all before (and sometimes I still awaken with mild PTS issues, not from my military experience, but from my training in a big city emergency room!).
Nevertheless, I grew up at an age where the cowboys and detectives fired 30 rounds without loading, and the bad guys all fell dead without a groan or even with any evidence of real injury or blood. The good guys got a "flesh wound" and were back in action in 5 minutes. People got hit on the head with a club or a gun but and were up and at 'em in just a few minutes. My generation had no clue what it is really like...THAT JUST ISN'T THE WAY IT WORKS!
I personally feel a video similar to this might just be the best thing for any prospective carrier of a weapon, concealed or not. It would work both ways inasmuch as the person would now have an understanding of the consequences of shooting a human being, but would also have a crystal clear awareness of the consequences of losing a gun gunfight through timidity. Just sayin'