This is a classic case of somebody breaking the rules because they could.
Anyone can go out there and buy a drone with the ability to do what this guy has, problem is, he has made a bad decision to fly out of line of sight and put his drone and more importantly, other people at risk.
Ok, I'm a health & safety consultant, so I know about following rules, so do most other drone pilots, but every now and then, somebody who doesn't care about rules pulls a stunt like this and drones are all Satan's work again.
What a jerk and down a few dollars to boot.
As they say down under....."Fair Dinkum".