Very well written article, very much worth a read.
I am not so sure about that, the amount of text at the beginning looks very unnecessary to me. The real text starts with the Red Hat and RHEL heading.
Otherwise than that, it was an interesting read. Seems like the author has a real unpopular opinion.
I think the beginning sets the context - a history of business models related to Unix, and later Linux + Open Source software. It’s important to learn from it.
It also shows that the challenges of the clash between capitalism and software freedom are constantly evolving, and presents how our battles were won (or lost) in the past.