A lot of comments are dismissing this because it doesn't provide a credential upon completion. But you don't get mad at a hammer for not putting staples in paper, nor get mad at a stapler for not putting nails in wood. This is a tool that gives empowers you to educate yourself, not a tool that gives you a credential. As someone with a deep love of learning and knowledge, I am delighted that this exists.
I think the reason fo this emphasis is that there are already plenty of resources for self-learning CS. Indeed a lot of the mainstream universities make their course materials available. The bit that is not typically available is the credential, so if we truly want to disrupt the edcuation model then that's the bit that needs to be solved.
Credentials historically are built in the brand of the institution, a clock which is starting to tick.
Would you care for the credential of an institution if it goes out of business in the next 3-5 years?