Cartrimino I mean, it makes sense, but it doesn't really affect the gameplay much. Carnivore eats the player and doesn't leave anything behind. Why would he eat the body of a player if, let's say, an average killer, killed a player. Carnivore is neutral, therefore has no reason to help someone from the killer team. If they made it so that Carnivore got some kind of boost, like agility (this would make people suspicious that a player is walking faster than usual, may not work out), then that may work out and I don't see why it would be too unbalanced.
Honestly, it wouldn't really benefit the Carnivore that much, and it would only really benefit a killer.