Correct, my bad.
No, it doesn't. Your original statement was that on average people don't know someone who would be a good designated driver in the event of a possible armed confrontations--so if knowledgeable of the threat, you have 3 options:
a) Do it yourself
b) Get a professional or local that's used to it.
c) Why are you there to begin with?
Could be lack of privilege, or just life choices. Both training and life experience can get you similar results, the former without the risk.
I get you're friends, and that you're willing to look past how he ignores things, that don't support his arguments on RBSD. I don't have to like it, but that's just human nature.
You are getting into semantics with Tyson. The system he is specialized in, is considered a key system in the practice of MMA.