"Mr. Khan conjures an image of a new campus in Silicon Valley where students would spend their days working on internships and projects with mentors, and would continue their education with self-paced learning similar to that of Khan Academy."

Because of course the entire world centers around SV and tech. And even if you are just trying to work as a manager at a regional chain in Kansas there is something you can learn from Silicon Valley.

"Mr. Khan writes that he admires the work of Peter Thiel, founder of PayPal, who set up a fellowship program for college students to drop out and pursue entrepreneurship with the help of financial backing and mentors"

The entire world is not cut out to be entrepreneurial. In fact most of the world isn't and can't (not everybody can be a chief we do need indians as the saying goes).

Noting also that Kahn takes the traditional route of publishing a traditional printed book (by Hachette Book Group) to get his views across. And will most likely go on a typical book tour and do the usual media publicity route. Nothing wrong with that. Just like there is value in traditional universities and things like Kahn "Academy".