Very much this. I think a large issue with MOOCs is that they're too focused on emulating the structure of a university class - focus on lectures, community built around specific classes, focusing on the metric of course completion rather than on attaining skills, etc. People who successfully teach themselves things (and right now, there are many people using the internet to teach themselves things) often have a very different approach.

It's interesting that so many people have trouble even considering that there might be other ways to approach education.