When one works with large wild animals this is bound to happen. Killer Whales are large
intelligent creastures who hunt in packs. The Animal Rights Commies predictably used this to push their agenda.
Personally, I would rather see Commies replace rodeo animals. However, commies are quite weak and a matador doing a bull style fight with a commie would be a bore. I could see the commie crying socialized medicine after being branded.
The animal rights crew is really a colossal bore. The critique is largely aimed at ending all zoos and circuses. If the critique were merely about better conditions than this would be another story. The old exhibits were rather sterile. The newer one are much better although sometimes you do not see the animals.
Animal trainers know the risks of their craft. They know the animals are dangerous and danger happens when they let their guard down. The last thing most of these types would ever want is to see their animals euthanized. The famous case of Kieko had the Killer whale retired to a cove and living with human aid for the remainder of his life.