I don't disagree. There are alternatives to archive.org [6]. There are ways to decentralize centralized services. I'm sure you can think of many more ways to do better than what is done. I mostly linked to https://archive.org because of the "https" in the URL. My point is that there are technical solutions to the technical problem of preserving history that do not require weakening the security of the whole internet.
Of course, the whole point of this article is that centralisation of important resources is risky. Archive.org is an essential resource, and it's really far too important to be at the sole mercy of the of the Internet Archive organisation, well meaning and admirable in every way though they are.