Not that it has anything to do with this rigged "test", but I don't think it should be legal for people to drive while impaired, and I personally consider THC to be impairing. As is being drunk. And talking or texting on a cell phone, for that matter. I seem to recall a Mythbusters episode where they did a driving test while legally drunk and also while talking on a cell phone, and the results were the same. Which makes perfect sense, at least to me.
The key is the impairment, not the substance or the circumstance, imo.
In all seriousness, I agree. Unfortunately I had to become a parent to see that I don't have the right to not be 100% coherent behind the wheel. Especially since my driving can affect someone else's loved ones.