It's not disingenuous. When I was speaking "proprietary" I wasn't referring to Cygnus but rather to RedHat and other complete system distribution firms. Internally, they maintain a great deal of infrastructure to smooth the assembly of complete distributions. They maintain that proprietary infrastructure to have a competitive advantage. They decline to assist public projects with that assembly of a complete system.

That is there right, under law and free software licensing terms. Nevertheless, it is a wrong in the sense that they are refusing to help the community who has so benefited them, and actively attempting to keep the larger community from self-organizing to eliminate the need for that closely held infrastructure. These firms sing a song about the benefits of community cooperation but they do not practice what they preach. They take free labor from others. They give back labor in areas that are strategic to them. But they withhold labor that would actually advance software freedom in substantial ways.