I mumbled through some answer. But I now realize that I had bought into the assumptions of his question and I missed bringing up the real point.
The ideas in the book 'Unschooling Rules' are not theoretical. These are not nascent theories that have been used on small pilots and studied by Harvard or M.I.T. grad students. I am not in the process of begging for funding from Ph.D. controlled-foundations, school principals, or other gate-keepers to roll them out to larger sample groups as part of some quixotic tenure-securing portfolio. (And, of course, these ideas certainly aren't "mine.")
Home- and unschooling is happening now. Over a million students already home school. And the number is growing.
Unschooling Rules is no more aspirational today than online shopping. For more and more families, it is simply their reality. Many of our future scientific, business, artistic, political, and religious leaders will not have passed through today's classrooms.
As much as school administrators and those in the academic Ph.d. guild would love to be in the position of evaluating the home schooling movement and judging them (much as IBM would have loved to judge Microsoft, or Microsoft to judge Google, or Google to judge Facebook), their permission is not necessary. Rather, truly caring schools and parents will instead work to learn themselves from homeschoolers and unschoolers to get new ideas. That is the point of the book.
We are entering a new world where families do have real choices. Homeschooling and unschooling will reform schools because it is the first ever school reform that doesn't rely on schools reforming.