Whirly
Even if the pilot had been incapacitated, the rotors wouldn't stop. It's pretty hard to think of ANY scenario in which the rotors would stop turning in that short a time, even if you wanted them to
I could think of one scenario, if the ac had auto pilot activated and ran out of usable fuel whilst the pilot was in capacitated, what would happen?
engines stop, AP keeps pitch on until rotors stop...