First, it is an obvious fake. You can't have a rifle, parallel with ground and shoot an Inspire, which is a lot higher. Mi also don't see this 'actor' being any kind of gun expert. Almost everyone could make the target shots. The Inspire 1 has much less of a target mass.
So, what was the point of the video? I know some might enjoy shooting down our UAV's, but they are committing a crime. If we are harassing that person, wife or girlfriend, with our UAV, call your local LE. No one should shoot anything down, that aggravates them.
If legal, then I could have shot down (or tried) many aircrafts as our USAF base's training flight path took a turn right over my house. The jets didn't bother me as much as prop driven planes. Had I shot one down or talked about it, on the Internet, I might not be free to post this!
I happen to support our military. But, why has it been in magazine articles, newspapers, etc. about shooting drones down? It is someone's property! As a ham, no one has shot me or my antennas down. If I cause interference, in any way, I will look into it and if needed, I will buy or build a RFI filter. I feel the same way about flying UAVs.
However, I've flown RC helis and planes. All were equipped with cameras. So, why is it such a negative thing now that our craft can hover? If we hover, at 20', over a neighbor's pool, with his wife or girlfriend laying out, then he/she should call a LEO, but they shouldn't shoot it down. Although a jury will be sympathetic.
Common sense folks.