I understand that Booser is now out of the hospital and in good shape. Here's some better video: https://www.leaderpost.com/news/crashes+Alberta+airport/3315220/story.html
Ehh....looks to me like the right nozzle is choked down for military or dry thrust. Guessing he lit the blowers to get out of slowflight and only the left nozzle opened giving him an asymmetric push to the right without enought speed for flight control inputs to fix it. Bad day.