When I read the article and it said, "The video, released by the Office of Naval Research (ONR), shows the LaWS system detonating a rocket propelled grenade" I was imagining it destroying it in flight and was standing-by to be very impressed.
Instead it destroyed one being towed at 5-10kts.
Even the UAV kill was mostly head sector with very little spin rate.
Further lazy journalism - "burning out the engine" and "burns out the hull". Neither of these things happen.
Nice toy though...