I hope his overconfident demeanor isn't giving you ideas about "winning" knife fights. It's very easy to talk tough. Not getting stabbed is a lot harder.
I'm responding just because what you are writing about is dangerous, and your unwarranted confidence is irresponsibly influencing impressionable people.
Dan Inosanto used to run (and maybe still does) knife defense courses for, among others, police officers.
The rule of thumb is that in knife-vs-gun situations, if your gun is holstered, the magic number to not die is 15 FEET. If a knife-wielding attacker is within 15 feet of you, trying to race him by drawing your gun to shoot him is more likely to end with you getting stabbed.
> A knife would certainly hurt more but adrenaline can keep you moving.
...And then you bleed to death.
> I guess my training revolved around the idea that the you should never surrender an advantage if you have it.
Being ALIVE is the real advantage. "Winning" a fight doesn't mean anything when you're going into shock on the way to the hospital.
Even if you beat someone up and escape without a scratch, the guy's buddies might kill you in your hotel room two years later.