Re: Pink Unicorn?
"If a DJI Phantom hits a rotor blade and leaves any sort of damage, that requires a new and very expensive rotor blade."
Which is _STILL_ cheaper than having to replace the rotor, gearboxes, tail, landing gear and crush seats after a rollover crash and you'll have evidence that it was actually a drone and not a plastic shopping bag caught in a wind gust.
I mention that specifically because of the case at Heathrow of a "dronestrike" which turned out to be exactly that - a plastic shopping bag which was still wrapped over the nose on inspection
Instructors aren't million-hour gods. In the case of light aircraft and helicoptors they're usually people with a few hundred hours under their belts working up to a commercial seat and when I was learning I had a couple allow me to make quite boneheaded procedural errors without them noticing it (busting height limits against an incoming civil transport and not squawking in military airspace. Minor, but should have been picked up on in the checklists.)
A quadcoptor drone flown into a helicoptor (even a R22) will be tossed into the ground _hard_ by the downwash if it gets that close - the outwash donut from the rotor disc in ground effect will probably flip it long before it gets near.