From the article: "Doing these kinds of analyses is notoriously imprecise, in some cases amounting to little more than guesswork."

That is does not paint a very good picture, and when looking into the actual report and what industries are considered: "...rise of the digital economy, as fair use permits a range of activities that are critical to many high technology businesses, including search portals and web hosting."

I would bet that any user-generated content website is considered, and who knows what else.