He seems to have jumped into the "online resources will cause the traditional university to fail" bandwagon a bit late. I haven't heard that much hype about MOOCs lately, presumably because the dire completion rates have cleared out the hype circa 2013.
It wouldn't surprise me if he's right, but not for the right reasons. Half of US colleges could go bankrupt in 10-15 years simply because they don't really provide a good education. They won't be replaced by a disruptor, they will just no longer be able to crank out mediocre educational product to people who now realize that a Bachelor of Something Or Other from Podunk U isn't actually a ticket to the middle class.