That stroppy legal letter from DJI is a feckin joke
Their complaint is all on the basis that a Mooney wouldn't be at that speed at low level, and therefore the damage couldn't be that severe in real life
Completely disregarding the fact that we're not actually concerned about Mooneys hitting drones, we're concerned about big pax jets hitting drones ... and they DO approach at exactly the kind of speeds shown in the video.
Just, it's rather expensive to trash an airbus or a boeing wing for the sake of research