Oh, I think I see the problem now. He doesn't want views to know anything about concrete inputs, but our modern GUIs are so closely connected to input that that's pretty much impossible. And really if you want to click on a sub element of a view, that's hardly avoidable.

So modern Controllers can only do their most basic job with these Editor objects that are tightly bound to views, were supposed to be ephemeral, and that LITERALLY NO ONE TALKS ABOUT.