1. Pilots will be able to fly more than 2 aircraft, since the interface to the aircraft is the same, thereby increasing utilization, and deceasing training
a system that allows pilots to fly at low level in poor weather safely, needs more training not less or you will end up with them following magenta lines into hillsides and wires, not to mention dangerous weather.
What works on a FW at altitude doesn't automatically read across to RW at low level - very different environments with very different threats.