It's so easy to say "but it's dead" and for the most part I agree. Still would just bug me if I saw my horse's dead body being treated in such a way and I know some of you all would come on here making the same complaints if you lost a horse near and dear to you. I can talk like it wouldn't bother me, and maybe it wouldn't. I can act like the rational side of me would prevail, but you know, I don't actually know this until I am in the situation. I might be a bit bothered, I might not be. Certainly not hysterical though.
So it's possible that I could overlook that. The health and safety stuff, no.
The thing is, life IS cheap, and animals are just commodities to some. A tool, a thing...just livestock. Killing and also creating waste is alarmingly easy for some. For some it has to be, depending on your occupation, or if you want to eat animals, for example.
When it comes to a quick death, I think their are far worse things that can happen to animals. Still though, it's worth taking a moment to think about it sometimes.