It's possible glasses use paper (or any other large-enough white surface) as an info projection area, "inserting" information from the glasses directly into real life. This could be a more comfortable user interface for data-heavy interaction than trying to do gestures in the air (think of the paper as a quasi-touchscreen, except that the "touch" is interpreted visually).
While an intriguing theory, methinks Occam's Razor applies.
i.e. paper has higher resolution, and is more readable than a pair prototype glasses? I think so too. The title is needlessly incendiary.
Teasing a new product requires a delicate touch...