A lot of people supported edX with time and money, including much of the early team and course contributors, based on this lie. Coursera was at least honest about it.
Aside from that, most Harvard online courses have amazing production value (fully staffed video teams), and preciously little learning value. That's reflected in the hiring too. How many Harvard professors care about teaching-and-learning, much less online.
I predict ASU, SNHU, Georgia Tech, and other schools which try to do online well will eventually eat Harvard's lunch unless something changes. With "eventually" being 50-100 years, since that's how long university reputations last :)
That's lots of time for even a Harvard to change.