The first point is a non starter. Anyone that believes their style would work 'if only they could go for the eyes and the crotch' just doesn't understand the requisite skills involved - do you really think the guy that can out punch you, out kick you, out grapple you and has a better understanding of distance and timing than you can't also out eyegouge and nutshot you? This is a fantasy. The second I see as a cop out honestly. I mean, if something only works on someone with no idea how to defend it, does it really work? The third I agree with, as I stated previously; the failure of a martial artist doesn't always mean the failure of the technique. But sometimes, it does.