That is of course true; however, I would suspect that, if it was an animal that had been raised and then killed by them, that there would generally be more use made of the animal's various parts.
Interestingly, in the south of Spain where I lived for a while, while they have a more blase attitude to animal welfare, the privations suffered under Franco ensured that, where animals were killed for food, they used as much of it as they could. That attitude still exists in the older generation, but appears less prevalent in the younger one, which tends, like most places, towards conspicuous consumption.
When you consider how Jews and Muslims mutilate their sons at a young age, I don't really think they're going to worry about an animal's death somehow.