I built an app earlier last year to help with spaced repetition on web content: https://retaino.com
It's been interesting to see a lot of interested over the past year around the concept, though it may just be the Badder-Meinhof effect at play (which I'm now able to recall the name of thanks to Retaino!)
Interesting thing to note: The Yale CS department has been hiring peer tutors and undergraduate course graders, which should definitely help alleviate things.
The idea that Scaz is working with 25 students on projects is a bit concerning. How can you give the necessary attention to any student, your own work, and any classes you teach when spreading yourself that thin?
I remember reading about Color from the get-go and being astounded by the inordinate amount of money invested in this idea. Not surprised to see how it turned out.