When Khrushchev took power he had many of the documents from the Stalin and Lenin eras burned. Early Soviet history is essentially non existent and impossible to prove with what little is left. Most official documentation is destroyed. Lenin may have just liked using that quote when he read it elsewhere. We can have truly know.
China wants to keep Western propaganda away from their people because it’s capitalist swill. It’s within their best interest to open up Chinese propaganda to Western audiences though. It’s all about home field advantage.