First, Parens was a part of "OSI" and their point was to make "free software" amenable to business. It's just a bit much on the nose to now see him annoyed at the results.

I don't know anything on "post-open", but some of the article sounds like he wants something like what ASCAP is to the music industry.

About redhat... the moment redhat went "enterprise" with RHEL is the point when they stopped being publicly friendly with their "enterprise" patches (remember when patches in the srpm became obfuscated... pepperidge farms remembers) and servers.