Yeah, I mostly spent my time watching the video being mystified at how lucky those idiots were to not get a stray rocket to the face, standing as close as they were without protective gear (which was what the recommended video was for amusingly enough). I know from my Dad's antics with those that I don't want to be even 30 feet* of non-professionals using fireworks in a (mostly) intended fashion let alone an unpredictable display like the video shows.But do know what the eff you are doing. Explosives aren't funny if you accidentally blow your hand off.
If you want to do something awesomely insane with fireworks then please at least use a little bit of that unused sanity to follow some sort of safety protocol. ;P
*the distance between our and our neighbor's dock which proved to be not safe enough when a stray rocket managed to reach it