I think the article missed to attribute Cohort-Based Courses to Wes Kao, the co-founder of Maven (the website's competitor), who first coined that term.

I first learned about CBC from this article: https://future.com/cohort-based-courses/

To me, learning is an incremental process. Because the goal of learning to me, is to understand though problem solving, not the other ways around.

This seems like an ad for the company.