This book very much comes off as someone who works with the top 10% of kids and has a plan that will work wonderfully for them. But it’s not even remotely realistic for the bottom 10% of kids who would play video games all day on their phone if their study was self guided and insufficiently accountable. Pretending that slice of the population doesn’t exist will do a lot of harm to them.
On a personal level I don't think that matters. From a policy perspective, sure, but for my own decision on how to school my children, IDGAF about the bottom 10%.
Nevertheless I recommend everyone to read "I would never send my kids to school" by Piotr Wozniak: https://supermemo.guru/wiki/I_would_never_send_my_kids_to_sc...
Something is fundamentally wrong with the educational system and it's holding humanity(/your children) back big time.