11 year old takes Stanford course

This is changing the landscape of education, you need to think again:

My 11 year old son just took a course at Stanford. That has a nice ring to it but it is actually meaningless because these days anyone can take a course at Stanford. You don’t even have to pay. All you need is access to a computer and a reasonable Internet connection.

Why would this 11-year old need to go to Stanford when he already has been exposed to the lectures and class materials?