I suspect most people will land on this where their predilections already lead them. To me, the effort to delay Mathematics education is sufficiently bad that I

I suspect most people will land on this where their predilections already lead them. To me, the effort to delay Mathematics education is sufficiently bad that I can dismiss the rest of that school of education without much concern. If they are right, they are right by accident and there's not much to learn there. I know there are others like me out there, and for them a quick reminder of who this person is will probably be sufficient for them to escape reading (what they will believe to be) a low-quality post. Time isn't infinite after all. If you feel less convinced by this, it's simply that you're not in my audience. But I think it's probably worth sticking a tl;dr on the original. Let me do that.