I agree that this is slightly less safe than normal operation. Pilots and flight controllers need to be ready to change plans everyday for various reasons be it

I agree that this is slightly less safe than normal operation. Pilots and flight controllers need to be ready to change plans everyday for various reasons be it weather, crashes, onboard emergencies etc. Landings in heavy cross-wind often are repeated and this is unforeseen and normal reason to change plans. If drone would pose any significant danger to flight control system then entire system is not working as it should. It's nowhere close to "cutting the power to air traffic control" as original post claimed.