Looks like a few of them have reading comprehension problems too.
I'm not blind. I have watched or skied socially with many out of uniform instructors. MA of their in uniform skiing generally carries over to their private skiing with a few tweaks. Do you honestly believe that the level 2, going on 3, instructor who sneaks in upper body rotation to start every turn in a lesson suddenly begins his turns with actions closer to the snow in private on more challenging terrain? Or that hours of misexecuted wedges a day won't instantly show up when they're skiing trees or bumps with family and friends? Do the instructor hordes down a shot of grip-be-gone before teaching a lesson on porcelain, or is that more likely a general feature of their skiing?
I wrote about a tendency, an aggregate statistic, of a large class based upon a large sample taken in multiple mountain ranges and countries. I never claimed to have seen you freeskiing. PSIA has some 30,000 members; no matter how great a ski god you are, you can't discernibly move the needle for that large population.