I fully understand and agree with what you say with one minor exception and I'll get to that at the end.
I'll be the first to admit that since I retired in 2009 I have not kept up with what happens at the unit level, neither RegF and ResF. What I know about the situation today I have first hand from folks on this forum and others that I talk to which are mostly gunners.
That said, what you're describing is no different than what I saw around me as an RSSO from 1976-8 and thereafter as a legal advisor to ResF units until 2009.
And that in a nutshell is the problem. I've been RegF and ResF for neigh onto 44 years and during all that time and the 15 years since, NOTHING HAS CHANGED FOR THE BETTER. In any corporate structure where one of its divisions has been recognized at being below standard, top down corrective action would have been taken. It hasn't been. Instead the top leadership has become satisfied with a ResF system that provides a mostly inefficient office overload program by way of Class Bs. And let me just deviate for a second to say that during my time I knew many Class Bs (especially at the NCM level) who were the foundation of what was holding some rickety RegF offices together by way of their individual talent and the fact that they provided stability in offices populated by frequently posted or stress leaved full-time military or civilian staff.)
Here's the place where you and I disagree a bit. Its the bit about "the willingness of the ARes to champion that change and push for it." I sat at what I cynically called the kids' table (Chief Res Council) for eight years. You don't have to be very bright to see when you are being fed "squirrel" issues to take your eyes off the things that matter in order to deal with the trivial. Much of our time was wasted on the constant drip we were being fed about the reserve force pension in those days.
@dapaterson will have a much better understanding of the timeline, but essentially it took DND and TB some seven or more years to implement a decision by parliament. In the meantime we blithely went on while we had reservists in combat and never addressed the elephant in the room that the only way we could deploy them was with extensive additional training and massive RegF supervision while the Americans were deploying National Guard brigades to both Iraq and Afghanistan. We couldn't deploy a platoon and no one cared. I watched equipment purchases going through where everyone nodded sagely and agreed that the reserves didn't need it and couldn't maintain it if given to them. I watched M109s being cut up for scrap rather than passed on to the reserves because they "couldn't handle them anyway." The RegF has a thousand excuses (usually its "the government doesn't give us enough money") for why the ResF is what it is but it has absolutely zero desire to take the absolutely critical and essential steps to move the goal posts forward.
Back to that kid's table. There's a Stockholm syndrome there. Every senior ResF leader knows that whatever the RegF leadership doesn't want to happen won't happen. So they get on board for the tiny little incremental changes that helps guy on the armoury floor because that's all that they can accomplish. It's a bit like that scene in Oliver Twist "Please Sir. Can I have some More?"
So. Am I living in a fantasy land. You bet I am. I know for a fact that the changes needed to make the ResF a viable one cannot and will not come within the ARes because they cannot raise an effective champion to lead the way. Reserves 2000 was well intentioned but misguided and the clout that those ex-reservists had (and it was over estimated anyway) has dropped away since then. Bureaucracies that promote from within always promote in their own image, and the long term image of reserve leadership is that of a subservient one. The model of a great industrial reserve leader who could mold political opinion has been fully subsumed by the career bureaucrat. And do not overestimate the clout that a CCA carries. Without consensus of the L2s institutional friction will pretty much defeat an unpopular initiative.
The only way that effective change for the ResF will come is if there is a political champion at the MND level who will push hard and long for such change. The RegF will fight that equally long and hard. This is a rice bowl issue. A move to a viable ARes is the slippery slope to returning to a small permanent force/large active militia system for the army. If the government had a clear demonstration that a part-time force supported and led by a smaller core of full-timers could provide for national security contingencies then they would go down that road. They'd be fiscally stupid not to.
So I'll just keep building my napkin forces, shamelessly borrowing concepts from folks smarter or more broadly minded than me but knowing full well that even if I convince one up and coming RegF officer in the wisdom of some of these ideas, his enthusiasm will be pounded down by his less enlightened peers.