I think the data is interesting, but the point it infers is absolutely moot: I have personally derived a a HUGE amount of educational value from several MOOC's

I think the data is interesting, but the point it infers is absolutely moot: I have personally derived a a HUGE amount of educational value from several MOOC's that I never completed. That's part of the beauty: you can learn what you need to learn, and you're not forced into a box that the course prescribes. You can pick-and-choose your own learning process.