This mentality drives me bonkers. If you don't want other people doing what they want with open source code, then don't open source it, at least not under a permissive license.
People are upset with Matt (though not necessarily the commenters you were replying to - TBH I thought it weird you posted your comment implying they were "attacking" Matt when they were simply pointing out the actual reality of the court ruling) because he wants to have his cake and eat it to: he wants to get all the benefits of open source (i.e. faster adoption and ecosystem creation) but then thinks he can be arbiter of some rules he made up in his head about "how much" someone who makes money off WordPress needs to give back.