Seems like Starlink has potential to completely disrupt undersea cables once the network is larger. Obviously it wont ever be the same latency or bandwidth as an undersea cable but it would be near impossible to tap and much cheaper.
Why bother with a drone? Just drive a van/truck/ATV with appropriate receivers near such ground stations.
Speed of light in a vacuum is higher than what can be achieved in a fiber-optic. Combine that with a more direct path than what can be achieved with an undersea cable and things start to get interesting.
The obvious solution is to start yeeting compute and/or users into space.
Fiber optic: 0.67c Atmosphere: 0.9997c Vacuum: 1c