Exactly. The Atlantic author seems to be laboring under the misguided assumption that the web is somehow the same sort of thing as a library of books. Even libraries often have some degree of garbage information in them, and represent a survival story: the vast majority of books ever written are no longer in print, or even discoverable anywhere.

Good stuff should be preserved, but it's not the Internet's job to somehow magically do it. It's OUR job, and the nature of digital information (DRM not withstanding) makes this easier than ever.