Moscow had betrayed the world revolution
If only the revolution had remained pure, we would now be living in a workers paradise. As some other FR poster so aptly put it in another thread, "gag me with a plumber's helper".
Well, it IS one way of looking at Moscow's tossing aside (as in not even bothering to try anymore) actual Communism for open totalitarianism within just a few years. I'd just call it "obvious failure".