Kuwaiti Paintball and Some Slow Motion Powderballs

I felt myself cringe when I saw that powderball hit the goggles square on. Interestingly enough, this video looks like it could have been taken anywhere in North America. I was hoping for a decidedly more exotic locale given the location.

Given the amount of time that's passed since I first looked at them, has anyone else seen powderballs used firsthand? Any further thoughts as to their safety and usefulness?