BMW, OK Don't go with ICAO Classifications that are allocated according to different traffic densities- just have controlled and uncontrolled airspace (ie all or nothing) as we did in the sixties and before.
Fortunately there are new young pilots and controllers coming along who have a different view.
No hidden agenda- if there was I would not post under my own name!
And the safety risk was as proven as the safety risk of a 747,-using the same methodology.