In reply to your question, Yes ! Up, Left, Right, or combination of both. Even down with some muzzle breaks. And I think the reason you don’t see sand kicking up is that the lead was headed skyward quite quickly. Don’t take but an inch or so of muzzle climb to send your ammo way off target. As in, low flying ducks down range would have been yelling ‘Incoming”. (trying to put a little humor to all this. sorry )
Watching the video that little girl had no training, and absolutely no control of the weapon after the first couple rounds. The Uzi was off to the races on its own.