Like I said, this is a cat and mouse game, if you had terminals to spare or even just fake battery operated transmitting antennas, you could waste a lot of drone time. There are also masking techniques and it's not like the drones can't be tracked or misguided. It would take orders of magnitude more effort to stop Starlink than to keep using it minimally. Iran is a big country, it just depends on how determined and prepared the protestors are to evade censorship. Which by itself is hopefully just a start to other actions.