JimL:
Thanks for the definitions. New to me!
The improvement in safety would be difficult to trace to only using Augmented GPS and much narrower routings. It would be part of a larger package that promoted using IFR techniques, such as pre-planned routes to common points from which to proceed to a scene, etc.
A change in overall mentality is what's needed - anything that can be done to improve our methods would be most useful.