I actually thought the article was gonna be about decentralization (as in P2P technology, like BitTorrent), but instead it's about the authors distaste for cryptocurrencies.
Edit: Maybe it's just me, but the article feels less and less honest the more I look into it. "Stephen Diehl" (the author) apparently founded a company that has the following tagline on GitHub "Adjoint digitises cash and settlement processes for multinational corporates." (https://github.com/adjoint-io) but I didn't find this disclosed in the post. There is a clear conflict of interest, but it's not highlighted for some reason.