Yep, BHA utterly useless or would already have removed the chance of such headlines by barring the horse from running over jumps:
Horse Who Hated Jumping Forced To Race And Dies In Fall
Rich Owner Sends Best Ever Horse To His Death
Wonderful Horse Killed By Greed
Champion Racehorse Sent To His Death By Top Trainer
Fourth Fall In A Row Kills Champion Racehorse
Take your pick of the above. The sport has exactly zero viable response to any of these. If this horse dies at Cheltenham or is badly injured the RSPCA would have a strong case for a criminal prosecution of Dusnhea, Henderson, and Buckley.