It appears that they teach the wrist on hip method a little differently than I do. I teach my guys to actually put their wrist on their hips and cant the gun so that the slide doesn't catch the clothing. The female instructor appeared the have the bottom of the mag in her stomach.
I'm not a fan of that bent arm hip shooting. To each their own.
The simunition training with the knife is good. But I don't know why they were all retreating to the rear. I teach my guys to change the angle as they shoot. This way the BG is taking rounds and has to try and change his direction. The way they were doing it is a good way to get stabbed.