At the intersection of Mathews, Russo, and Cody today, the most important point is that reformers have nothing to gain through more public debate. They've got the inside game, and that's all they need. They are strongest when policymakers and politicians are completely unaware of any alternative vision. That's why they constantly claim that no alternative vision has been articulated, when many have been, in great detail and rigor.
It is getting harder for them to keep up that stance, but as more and more data comes in showing their approaches aren't working, they'll have to double down.