Bean Counters missing the point
The essential safety point has been totally overlooked here. When an ATCO clears an aircraft to land , take off or cross a runway, he/she does not just look at the runway (as a camera can only do). The ATCO scans the whole environment, looks for uncleared movements, unusual activity, stray vehicles, birds, wildlife, FOD, stray airborne aircraft and increasingly small UAVs.
The ATCO continually scans and observes the whole airport ATZ until the aircraft is clear of any potential danger. A camera or multiple cameras cannot do that.
Will that safety issue be taken into account by the beancounters ? NO