Dude needs a refund.

[Great-Kazoo]

Point 1- Talking in general terms, for the average adult... so no, doesn't dismiss the actual science that is used for nationwide training for Drug Recognition Experts in Law Enforcement- basically an associates degree worth of information and training crammed into two weeks.
This has been discredited by LE's in the past.
Point 2- Pot vs cigarettes- doesn't matter the artificial stimulants, the smoke from pot smoke is more harmful than cigarettes... you can doubt the science all you want, doesn't change it, though.
You are right on with the CO becoming the pot/liberal mecca of the nation... Don't hold your breath on the R and I voters coming to the polls... they didn't in 2008, and it wasn't much better in '12. As we could see from Obama, Hick, and the various Dems that managed to win at the state level. I miss the days of CO being a red state.

I have personally witnessed folks, high as kites, walk through road side testing. How did they do it? Not looking / Profile of a stoner.

You being in the academy and quoting book & verse does or shows nothing valid. Outside it's material geared towards LE instruction.
If there was no WOD, i doubt much of the "science" would be a blip on the LE radar.