No, you have not. Would you still feel the same way if they had shot the donkey before they fed him to the tigers? Or are you upset that they did this in the public eye? They actually make documentaries about animals killing and eating other animals, to me it makes no difference if it was a protest or a normal feeding ritual.
operative words “to me”. So it is mox nix to you, great. Luckily your sensibilities, such as they are, don’t rule the world.