"Knowledge", for the most part is. What I see archive.is get used for most frequently is circumventing paywalls on paid-for media websites, which is journalism. And while freedom of the press is a constitutional right in functioning democracies, freedom of access isn't enshrined as much. But most of the things are background articles, the actual news is freely available to all still.

I'm all for archiving open webpages though. And I'm honestly surprised the Internet Archive is still standing. Their decision to opening up their book library was a dangerous mistake.