Are these like military grade aerial drones or something? The one shown in the picture, and those many use to do prelim roof inspections, fly far too low - seems it would be encroachment of owner's property rights, no?
The article says they’re also using low flying planes and balloons to do the surveys.
A commercial pilot's license requires 1500 hours of flight time under one's belt. The company paid them a small sum to strap a camera to their planes and fly certain routes. New pilots make some extra cash and the company gets cheap shots.