Or modular learning? I'm trying to advance the idea that there's a better word that better defines a decentralized approach to education which is not school at home, but school out in the world, drawing on the best resources available for each child's individual education https://manisharoses.medium.com/not-school-or-homeschooling-...
Well there's "unschool", if you want a term that emphasizes that it's not school, but the way it's done is way more important than whatever it ends up being called.
As Caplan mentions in the above post, he's troubled by unschoolers' subpar math skills, linking to a post citing a study. I don't think the blog post you cited addresses that point (among other points).