I think you're missing GP's point (or possibly I am but I don't think so). They aren't saying they are buddies and so they wouldn't want to sue. They are saying "Red Hat pays a lot of people to work on this, possibly to the point where the project would be dead without them. They're not just packaging up somebody else's code and shipping it"

I adamantly agree with GP. There are important projects that wouldn't exist without Red Hat, or if they did they would pale in comparison to the proprietary solutions and wouldn't be seriously used. Qemu/KVM is a big one. Without Red Hat's investment, it would all be VMware and anyone wanting to (seriously)_virtualize on Linux would be using VMware.