I agree on that.  Training vs. experience, my money's on experience.  But to say that this entire system does not work is false.  I train with a man who worked in security for over ten years and he has used Krav Maga in every encounter.  I'm not supposed to say it but he has killed five people using some of these techniques.  Of course other systems work, but so does this one. It's the practitioner, not the system.