Been out, so I'm late to the party. There is a big difference between a traffic stop, where you can be calm and do everything they talked about in your CCW class and the aftermath of a deadly fight. If you read the article the author covers all the issues of hearing loss, tunnel vision, etc. Kind of hard to "follow the rules" after you just shot someone in a fight for your life.
Of course there is and I was not trying to equate the two scenarios. Only trying to make a point.
Also a lot of people are unaware that many “innocent” people are shot by police every year during a traffic stops and often because of improper gun owner behavior.