This strikes me as the funniest thing in computing since Bill Gates said no one would ever need more than 640 kilobytes of system memory. Really! I think you will find it so, as well.
It seems McAfee is like some other companies and confuse software licensed under the GNU Public License (GPL) with software in the public domain. There is a world of difference. It also seems as though McAfee appropriated some of this code and is now being held to the terms of the GPL, which require someone who distributes such software to return any improvements or changes they made to the code to the community and to publish the source code. (The two are usually one and the same.) The company is just now getting around to admitting this and, seeing as they are legally bound to the terms of the GPL (no matter they say it has not been tested in court, which is a widely held assumption and totally false) they've thought to disparage the license with that and other falsehoods.
This is a quick read and about as funny as it gets.