I'm not well-enough versed in HMI design or similar concepts, but I think this idea for augmentation could collide with alarm fatigue and the disengaged overseer problem in self-driving cars.

If we aren't confident enough in the automation to allow it to make the call for something simple like a runway incursion/conflict (via total automation), augmentation might be worse than the current approach that calls for 100% awareness by the ATC. Self-driving research shows that at level 2 and level 3, people tune out and need time to get back "in the zone" during a failure of automation.