#1. My wife has never fired a gun. If someone breaks in and I'm not around, I want her to be capable of firing as many shots as possible.
#4. If the situation reaches the point where I need to fire, I'm not real concerned with collateral damage.
If I were a sport/target shooter, I'm sure I'd like to see how I could group a hundred rounds in 30 seconds. Sounds like fun.
I'll also add that I don't know why anyone would really need an AW out in the wild but, if they felt more comfortable with it strapped to their back, I'm not going to say "No, you don't need that."