More like MMORPG murderhobos. D&D characters who die do not respawn intact -- not without some effort from their party to use resurrection spells.
Also D&D characters do feel pain and do need to sleep and eat and drink, usually.
Though these ghouls also have the odd trait, according to the Paladin, that if you cut one of their limbs, it can still move and act. Kinda like Three...