This not a machine picking out what authors are worthy of digitizing, it is a computer scanning wikipedia and a few other sites. In other words, it is meta: ranking what regular humans have already ranked by their words and effort to describe. The merit of the critics/reviewers is questionable.
Deciding what is worth digitizing based on the merit of the work itself is not part of this article. For now, I'll stick with librarians deciding what to focus on.