The mass of data that is sent to and from simple recce drones, is simply incredible. To transfer the hundreds or thousands of more data volume to replace the 'man in the cockpit' to a pilot in a bunker/office/bar, without losing line of sight during manouvering, in a timely manner without undue lag - I just don't know if its yet possible. Then in times of jamming, or lost signal, the aircraft is likely to return home, leading to a loss of mission - may cost more lives.
In many scenarios the Stick Monkey being on the scene in a much simpler aircraft can achieve a lot more at a much cheaper cost.