You may not understand this type of situation, but I've experienced the feeling of going from a safe, comfortable environment to being in pain and seeing friends hurt, all in a split second; even with Marine Corps training, I was ready to snap. My hands were shaking, there was a roaring in my ears, and I was ready to kill the first threat I saw. That situation, in my home, with my family? It isn't a choice. We are biological creatures, and there are some reactions that are just biological. It's easy to play armchair general and discount all of the human factors.
I understand and I assume you have weapons stashed around your residence in case of these kind of encounters.
But this family almost certainly did not. If you watch the video, the gun is pointing upstairs, presumably at the husband and children. I doubt the husband has a firearm handy or a means to defend himself for this situation.
So his emotional response to attack without proper weaponry is foolish, unless on the odd chance he’s a trained ninja like you :)
Read through your comment: "I doubt the husband has a firearm handy or a means to defend himself for this situation. So his emotional response to attack without proper weaponry is foolish"
This point of view is speculative, it doesn't come from experience (or even a basic psychological understanding). People do NOT function that way. Maybe they do when playing Call of Duty or watching a Die Hard movie, but not in real life. I can't really impart what it feels like in that sort of situation, but I hope you never have to experience it. You end up needing therapy.
I'd have thought the logic is, "If you want to injure, use a baton. Guns are tools for killing."
Teaching "shoot to injure" would be reckless considering the chances a "wounding" shot ends up killing somebody.
Most training is to shoot “center of mass”. That often kills, yes, but if the goal was to kill (or even kill quickly), tactics like the “Mozambique drill” - two shots center of mass and one shot to the head - would be standard. It’s not. It’s specifically used as training for exceptional circumstances.
I understand the sentiment. I really do. But that is the wrong response when someone is pointing a gun at you. That’s how’s your child loses their father or mother.
Don’t forget that police are trained to shoot to kill. There is no training for “shoot to injure” ... the logic being that if you are injured, you can reach into your clothes and pull out a gun, potentially killing the officer who shot you.