Probably not. At least with the pigs in charge no one is getting slaughtered for food. Sure, Boxer does get sold and euthanized, but at least he's pretty much dead already. As far as we know, they aren't selling pigs and sheep and chickens for food.
There are definitely bad things going on with Napoleon given that he's willing to kill animals for political reasons. But somehow that seems better than having lots of animals get killed for food since in the second case there's nothing they can possibly do to avoid being killed. At least under Napoleon they can just obey him and live.