I think that the idea is great, but it's also very difficult to accomplish as you'll have to come to terms with existing universities. They won't welcome you with open arms as their first thought will be that you're going to take some potential students from them. Somebody who would have to take a loan, and rent a place to be able to study, will now do it from home for a fraction of the price. Also, the teachers would have to allocate additional time and the time of a university professor isn't cheap.
The idea is great and I'm sure it could work, but it's going to require a huge budget.
Thank you for your feedback. On the contrary, I actually feel the platform will bring new students for those distant universities. Creating a global database of accredited courses and building a network of universities will actually bring a lot of new students to the platform and help universities recruit students more easily. Even though students might not complete entire degrees from those particular universities but individual courses introduced to global masses will be of great interest to students from underdeveloped countries where education is a not easily accessible. Although I agree completely digitizing and globalizing education is not a very profitable approach for majority of the top tier universities.