These dangling corpses and how to deal with them are not well known. They're not edible, he knows that. Unless disturbed, then the thing that comes out IS, which is taking effort to not simply disturb every single one of them searching for exactly the sort of monster he's in the mood for. But that's not something done around others.

People tended to complain. "Better to just shoot them. Hanging gives time for reinforcements to arrive." That's not why people shouldn't be hung, but it makes sense to him and as far as Heat thinks, he's agreeing. "But they're dead now, so it doesn't matter."