I enjoy this project specifically because it is involved. There are many different scenes, all of which can be controlled by the user's movement. Nearly any object can be used to move these designs. The project is very open ended and will therefore lead to many beautiful and unique artistic outcomes.
I think more artistic mediums should be incorporated into this project. In the video, the people moved the cardboard and created interesting design, but coupled with a dancer holding the cardboard the design and the performing art would be more impressive still. I think the same would go if the visual design was coupled with a composer and a soundtrack.
This project comes from a great deal of research on the part of the innovators. They look to Virtual Reality and Augmented Reality to see examples of "device-driven experiences", but go to create a project where the device in-hand is as simple as a piece of cardboard. This project is advancing in the same was that VR and AR are advancing, but is branching off on its own.