I don't like it when a build forces you to sort the bodies. Sometimes the mafia members want them to be disorganized so players get confused. Having body piles also disallows mafia to put a body near a stair case so they can later snatch it and run down the stairs quickly to be unnoticed. It's also extremely easy to spot when a body is missing.
If the remaining players don't want to sort the bodies, that's their decision, they shouldn't be forced by the build in my opinion.