There are many points, obviously, for all sides of this discussion.
However, having flown B777 test flights out of Everett on a weekend (i.e. 'G') and out of places like Glasgow Montana (not the 'international airport, the ex USAF base owned by Boeing) where there is Nothing in the way of airspace, ATC always provide a service.
This intrigued me so when I questioned an ATC supervisor about what service ATC gave to IFR aircraft in 'G', he was a little confused.
His answer, 'we give IFR a full service as best we can regardless of the airspace classification the aircraft is in. Most controllers do not even worry or care what the airspace classification is', or words to that effect.
Isn't that what we want as an 'end game' here in OZ regardless of how we get there or what we call the airspace?