Yes, I remember the conversation well & still roll the eyeballs when I think about it.
Obviously some people have no idea or experience in being impaired & think its the same no matter what you take.
There is a tolerance of impairment i.e. 0.05 for drink driving but none for MM/Hemp when I know (in my own experience) drink driving is much more dangerous so they need to review this as non THC hemp apparently also can be picked up by the unfair drug test.
Impairment when stoned makes you more cautious if behind the wheel whereas if drunk it makes you take more risk...