Out of curiosity, did any students from that school go to any of the top global universities? Like Oxbridge/Ivy League/Etc? I wonder how those students do in comparison.
Also, as a kid who learned much better through class interaction with a teacher, your school would have been a nightmare for me, instead of doing so well in school I likely would have failed. Undiagnosed ADHD is terrible for self-driven learning.
I live in Sweden and it's less common for students to study in Ivy-league schools abroad.
And yes, it's a very special way of learning - puts a lot of responsibility on the student. But on the first day of the weeks in the group meetings your mentor checks up that you managed to hit your goals last week etc - and if they notice that you keep up failing your targets they will take this up with the parents and possibly make up a study plan for you and see to it that your in the workshops of those subjects between the agreed times.
Also, as a kid who learned much better through class interaction with a teacher, your school would have been a nightmare for me, instead of doing so well in school I likely would have failed. Undiagnosed ADHD is terrible for self-driven learning.