No, it's really not that bad as long as you're responsible about it and don't leave prey items in the tub/tank. I think you'll find there's quite a few live feeders on here. I feed F/T, but only for the convenience of keeping my snakes food in the freezer.
I think the idea freaks people out and it's turned into a big thing, but there's nothing wrong with a responsible keeper feeding their animals live prey.