You can't tell for sure whether the maneuver is approved, or not. Highly likely not approved, but until you have definitive proof, I believe that the US Constitution applies.... "presumed innocent until proven guilty". I will presume the individual, or individuals, are in compliance with applicable FARs, until someone proves me otherwise.
Very very poor argument.
I'll start with this one.
91.13 Careless or reckless operation.
Not knowing the airplanes location, it could also be subject to 91.303, because that was not a normal flight attitude.
There have been people who have ripped wings off of airplanes. And this guy looks like he came close. Listen to the throttles get chopped, and the nose down pitch attitude after completion of the roll. Can it be done, sure. Any airplane can be rolled, once.
) but with proper control inputs, the airplane wouldn't know it was upside down...occupants neither.