This article seems to leave out why open-source changed it's meaning from "source available" to "source shared". That results from the FSF, GNU, copyleft and the rise of Linux.

⌘-F show only two references to GNU or Stallman, both derogatory references to Emacs. All references to Linux are about how early versions sucked and how it was a "copy" of Unix.

This highlights a lack of understanding from the author which may explain a lot of the viewpoints.