Nothing personal, Gonzo. I don't think that I even know you. But, from the outside, it often seems that changes to ATC are being introduced without regard to previously "sacrosanct" procedures & requirements. And, when you look closely at those changes eg ADC Radar, "Tunnels in the sky" etc nothing has actually changed to enable you to throw out the old system with, what I would call, any real conclusive supporting evidence.
I'm perfectly willing to accept that, from your viewpoint (& I accept your personal involvement in this subject as being highly relevant), I may be "talking through my arse". I do not intend to denigrate your work !
But, from my viewpoint, a lot of these changes appear to be based on wishful thinking & a total reliance on technology to get you through.
I suppose that it's always painful to have to ditch familiar old , tried & trusted techniques, but I have reservations about this one; BUT, I acknowledge that you are far more familiar with the topic than I am.
Good luck with it.