Not to argue too much against what you're saying but I thought that some EU gov't entities had moved off of Windows a while ago.
I know at least one university that doesn't put Windows on its machines either. While Uni requirements are not the same as "enterprise" requirements, it does feel close-ish.
Having said all this, I am very primed to believe that they have a Group Policy-sized hole in their systems. Just thinking they are doing ... something.
