This is exactly right. I started teaching undergrad CS about 18 months ago after 20 years wandering through other careers, and I quickly realized that students do not need better teaching. They need frequent, direct feedback and an environment that more or less requires them to commit to studying until mastery or to quit early and do something else.

Effective learning techniques have been known for decades, but universities have -zero- incentive to improve teaching quality. There is no standardized assessment infrastructure to compare graduates across schools, or to evaluate the effectiveness of teaching interventions at scale. So any effort put into teaching quality is invisible and thus worthless to a university.

Every attempt to make high-quality instruction available for free has been largely irrelevant to the unwashed masses, because universities have a monopoly on credentialing. The self-starters can learn anything for free, but they were never the problem. It’s the middle 50% that we have utterly failed.