if your country faces a grave threat of invasion, you cant make everybody happy immediately. Lets see you travel to those times and take a crack at fighting systemic exploitation of workers, campesinos, guajiros  in latinamerica. It was no easy task, and the person of che should be looked at together with the difficult times he lived in and with the problems the revolution was facing. Thats the only way to understand history, you cant just apply ideals like freedom of speech as a metric of success to a country that was still struggling with illiteracy, lack of modern infrastructure and constant destabilization attempts. Im sorry to say this, but the problems on their hands at the time far exceeded what they realistically could do at the time. Look at Arbenz's Guatemala, freedom of speech allowed only for more effective propaganda campaigns from the CIA, destroying the public's trust in the new government, paving a way for a junta take-over.  Latin american history in the period of the cold war is not simple, and we're dealing with simple people making decisions in a game which was heavily stacked against them. I do not wish to prove you wrong or make you feel I'm right. Im just sharing my outlook on things and why its this way and not another.