It depends if he was talking about contribution only to Linux kernel or also about contribution to other OS projects.There is a kernel called Linux. There is a conference called Linux Plumbing. You must be idiot to blame kernel developer, using the term "Linux" in right and original way! Oh wait. From now, all kernel developers should find a new name for the Linux (kernel), because some idiot adopts it and now is not able to difference kernel (original) and system (colloquially).
I assume it was just about kernel contribution, but if Canonical supports projects like Gnome or KDE or some other OS projects (in theory) it shouldn't be blammed.Thats useless argument. I would not anticipate from kernel developer to prepare GNOME patch statistics fot a Linux kernel keynote on a Linux plumbing conference!