They suspect it did. They just said that the drone is an Iranian made drone and it is capable of carrying 80 lbs of explosives. Not a whole lot but enough to terrorize people in Tel Aviv.
Why build million dollar predators when you can build $200 radio controlled (or dead reckoning, if you don't want an airstrike on your transmitter) minions of flying death?
Close, pusle-jet -- the princuple is the same but operation is quite different
They called them "Buzz-Bombs" because of the rapid opening and closing of the shutters which controlled airflow into the engine -- and the subsequent staggered explosions that propelled the V1 forward to it's target