Perhaps you’ve not heard of the recent increase in popularity of outback exploring and 4-wheeling, not to mention the spate of wildfires during a western drought.
If it appropriately addressed the public safety then FAA would have had a difficult time denying the permission. Doh.
Red Bull was not suggesting they were doing a regulated “test crash” with appropriate fire/rescue personnel and safety measures in-place. They also were not performing this stunt in an approved restricted area. Stupid is as stupid does.