The answer is obviously because every country like China, Cuba, Iran, North Korea etc will just take the best version from the US and slap their name on it, just like the Chinese do when they rename Red Hat to Red Flag. In my opinion they shouldn't be getting that technology from us at all, but especially not for free. Of course I'm not a one world globalist either, that sees countries like those I just listed as equal partners in anything.
You do realize that changing the name has nothing to do with technology, only trademark. Nevermind, you probably don't.