Certainly Flan's video of a traffic stop is rather calm and innocuous compared to Navy's videos, which illustrate the investigatory aspect of police work, after the fact. The traffic stop and just following the LEO's wishes are, IMO, common sense for the safety of both of you and the LEO, and, in states where you must show CCWP, a legal sense.
Correct. However, during the traffic stop what we are discussing is offerring information that is not asked for nor required by law to give and usually not related to the traffic stop at all, and answering questions not related to the traffic stop.
An example I gave in an earlier thread: let's say you are stopped for speeding in Seattle. You offer to the police officer your CPL and inform them you have a concealed handgun. He asks you to exit the vehicle so he can retrieve your firearm for officer safety and asks you if there are any other weapons. You answer, well, I have this pocket knife my wife gave me for Christmas. Officer asks for that too. You give it to him. Blade is over 3.5" long so it is illegal to possess in Seattle. Now you have lost your knife due to confiscation of contraband and get fined for illegal possession of a dangerous knife bacause you didn't know that law existed in Seattle and you told the officer about the gun that likely would never have come up/been asked about if you didn't offer the info.
And that's one of the problems: is it possible for you to know every state, county and city statute that you might be subject to? Why take the chance of confessing to a violation that you might not even know is a violation?
I have never been asked about a firearm/weapon, and I used to have quite a speeding problem so I am well experienced in traffic stops.