This is not just organizing files, it's also a design process. Interesting.
Interesting article, thank you for sharing. I would just point-out that a "world-class design agency" should be using a version control system within their design process.
Great article! We were doing quite the same before, we kept a part of it but replaced the design file management system / export via Abstract. It feels easier and saves time.
Really insightful article... Thanks for sharing!