This sort of tech will probably be used to make better cluster munitions (though I wouldn't be surprised if this technology is already used in them), but I don'

This sort of tech will probably be used to make better cluster munitions (though I wouldn't be surprised if this technology is already used in them), but I don't think there's much tactical value in this kind of tight coordination for a drone swarm. In combat you wouldn't want your drones this close together, one missile could take out a bunch of them at once.