On a technical note, there is a problem with this experiment. The setup does not simulate what would happen in reality. In this demonstration a drone is fired at the leading edge of a stationary wing. I.e the wing has no airflow over it. Also the target it the exact leading edge of the wing. This scenario is unlikely to ever happen in the wild. In reality, the drone will be almost stationary relative to the air and the wing will be moving through the air at speed. In such a scenario the airflow would tend deflect the drone up and over the wing.
As someone pointed out a bird strike would also cause damage, yet how many birdstrikes do we hear about. Birds are much more numerous than drones. I have heard of engine strikes as the opposite is true here, the engine sucks in whereas the wing sucks up and over (its lifting all that weight by doing so!).
Having said that I am not advocating people fly way out of LOS. I have helicopters training in my area sometimes, so I always know where my drone is and am always listening out for interlopers. If I heard something I would return to home at a safe altitude.
