Not sure whether you are correct. If you are, I believe that MOOC model can be modified to fix them. (ex: local meetups for teaching how to learn, google hangouts for in-person discussions).
What is interesting is that your single paragraph contains more valid objections to MOOCs than the original 4500 word essay. It was a collection of anecdotes, emotional appeals. Which is really lame, considering that MOOCs are just getting off the ground, early alpha, there are tons of real serious flaws.
I heart the idea of MOOCs. I enjoyed my grad school. I've recently taken two online classes. Loved Ng's Machine Intelligence, dropped out of Startup Owner Manual (but got a few good pointers). When MOOCs take off, they will change education as much as self-driving car will change the car industry.