Mitch Goldstein eloquently captures the essence of design education:

Design is so big that it really is not possible to provide a comprehensive, complete education in 4 years—it takes a lifetime to even learn a small part of it. These moments of enlightenment are what make design education truly useful, because in these small moments a world opens up to a student. These insights and lateral connections propel students to spend time on their own to find out more, especially after a class or school ends.

This is very close to how some of the best teachers I know work. It's hard to build classroom structures that turn these rare moments into reliable events, akin to engineering happy accidents. We need to take care not to fill the curriculum, flipped or otherwise, with so many structures that we crowd out the opportunity for these discoveries.