So true. One of the worst aspects of school is the imposition of a uniform schedule on everyone. There is a point beyond which learning faster means learning more shallowly. You don't have time to develop a rich mental model, which you test, explore, edit, and integrate with related models, but have to settle for a less refined model. With even less time, you have to resort to memorizing parts you don't have time to figure out to parrot back on a test. The less time, the more you have to rely on memory of isolated facts and general-purpose logic to "just pass the test".
It is tragically common for people (esp. kids) who would be fully capable of understanding the material to be hustled along at a pace that is determined by factors unrelated to their personal needs, forcing them into less-effective learning modes.
These artificially time-limited MOOCs potentially turn us all into such kids. If I'm trying to learn something for which my preparation was 20 years ago, I'll be as good as anyone after I finish the course, but I need more time to do it correctly. If I'm trying to learn something but only have an hour a week to allocate to it, it's my turn to be the "slow learner", but given the necessary time, I'll know the material as well as the fastest learner by the time I finish.
But MOOCs impose a schedule unrelated to my individual circumstances, and I can take it or leave it. It would be so much better if they just told me what to read, and whenever I finished reading, I could watch the corresponding video lecture, then I could go to an open, ongoing forum to read the accumulating Q&A for that lecture and post my own questions or comments, then on to the problem sets with answers and discussion again on the forum, followed by quizzes and tests (multiple versions of each, so I could take them, repeatedly if necessary, for my own guidance, not grades)...and I could plow through it all in a week or chip away at it for a year, as suited my needs.
If they wanted to offer credentials, they could separate the teaching from the ultimate certification testing.
As it is, in most cases a good textbook still meets my needs so much better than all this advanced teaching technology.