What kind of hermetic limitation would It need to overcome according to You ? Giving mental command to a dead body part instead of a whole corpse ?
I can see it being a "poor's man prothesis" compare to an enchanted device that actively reads you intentions like this : Hermeic Prosthetics
Indeed with this spell you would need to actively concentrate to make it move but on the other hand you could do some "Addams family's Thing" trick.