Potentially dangerous? I think so.
What happens if you miss? Probably the same thing that happens when you make a bad shot or miss with anything. Injured animal on the run that may die or may not but that issue would be about the bad shot not the equipment.
All in all it looks like its designed for Hog hunting and not Whitetail hunting. I say let the hog hunters make the decision if they want to allow it in or not.