And these are just guides.NRA Gun Safety Rules
The fundamental NRA rules for safe gun handling are:
1. ALWAYS keep the gun pointed in a safe direction.
This is the primary rule of gun safety. A safe direction means that the gun is pointed so that even if it were to go off it would not cause injury or damage. The key to this rule is to control where the muzzle or front end of the barrel is pointed at all times. Common sense dictates the safest direction, depending on different circumstances.
When using or storing a gun, always follow these NRA rules:
* Know your target and what is beyond.
Be absolutely sure you have identified your target beyond any doubt. Equally important, be aware of the area beyond your target. This means observing your prospective area of fire before you shoot. Never fire in a direction in which there are people or any other potential for mishap. Think first. Shoot second.
* Know how to use the gun safely.
...Nothing can ever replace safe gun handling.
Source - NRA Gun Safety Rules
The biggest firearm safety rule of them all though is; 'Use your best judgment'.
If this course were being taught to specialized personnel toward covering specialized procedures and tactics then I'd buy it.
But that is not the case as I can see here. It's just a line of poorly managed and structured civilians running what appears to be a basic level static engagement close combat drill.