In a related argument, I don't know crap about how humans react under stress and I've never been in a fight for my life, but I think the attitude that rational thought and the ability to actively problem solve go completely out the window when you get violently attacked isn't true for all people confronted with such behavior. Now they certainly may be diminished, but I'm just not willing to assume I'll suddenly forget how to use my slide stop or assume a proper firing grip or something under stress even though I've performed like a thousand reloads where every time I've swiped the slide stop as soon as the mag is seated and in the past 6 months or so only blown my firing grip 2-3 times in practice.
Like that line in a Magpul DVD. "How will you know your grip is 60/40 in a gunfight?" Uh, because I've trained that way every single time for the past 2 years.
If someone puts a gun in my face and I suddenly blubber like a fish out of water, I will happily change my mind and eat crow so fast it'll still be flapping its wings in my stomach. Til then I continue in blissful skepticism.