New forms of online education like MOOCs lost both forms of primacy at once. By making them free, students had few incentives to not quit any time the course materials got boring or difficult. Without a physical presence, there weren’t the social peer effects of friends encouraging us to attend our classes on time, or shaming us about our poor performance.
These products often tried to emulate the feel of a course by forcing students to take them concurrently. The effect of that model, which Coursera particularly prioritized, appears on the surface to have been unsuccessful, while also reducing the convenience that should be the hallmark of online education.
Open education is absolutely needed – course materials should be distributed as widely as possible for as cheaply as possible. Knowledge deserves to be free. But that openness also makes it hard for these materials to gain primacy in the lives of their students when they are just sitting on the web like every other web page.