Speaking from first hand experience, IMG is world-class in everything, including academics. I don't mean that in the sense it's the hardest, most rigorous academic HS in America, but it's designed to prepare student-athletes for the next level and students pay about $70,000/year to attend. The people paying that kind of money to send their children there expect a decent education. I haven't sit in on any classes, but I get the impression it's superior to your average public HS.
The type of kids that go there are: a.) decently talented with rich parents, b.) world-class athletes with sponsorship from their respective National Federations and c.) 6'2", 220lbs running backs with a 4.4. 40-time that get a "scholarship" to attend and boost their first-year prep football program (i.e. Bo).
Bo is going to school with the next Tiger Woods, Roger Federer, Yao Ming, etc. I've been there several times with the highlight being a lunch date with Hope Solo. Well, it wasn't really a date but she was sitting at the table next to me and we made eye contact several times. I know she was feeling the spark I felt. (Side note: As strange as it sounds, that lunch was the most star struck I've ever been and I've spent a lot of time around NFL and college players, celebrities, etc and NEVER get star struck.)
It's not really an experiment since it's a proven program/academy with other sports. The academy model has been around with other sports at IMG for 30+ years. The "experiment" is with the football program, but it's going to succeed and IMG knows this. There are enough wealthy parents with athletic children to feed the school for years to come and the talent of their international students will increase dramatically in the next few years. And of course they will attract guys like Bo that don't need to pay the ridiculous tuition costs. IMG does things at a world-class level and the program will only continue to grow.