East Germany wasn't ruled by psychopathic sadistic criminals, they had a mandate from Moscow which weren't also psychopaths (at least since Stalin died), and when Gorbachev went into power, the transition became inevitable and "smooth". The events of 89 were allowed by the commies because they saw they were inflicting unnecessary suffering to their population, and there was a better way. IOW, they were human people trying their best.
Can we say anything remotely ... ahhh... no. No we can't. Kim's family is composed of fanatics that do not believe in their leadership themselves, unless they maintain their population under extreme oppression and psychological tension. They believe (rightly) that if the pop actually learned the truth about the world and how this family has kept them suffering so much for so long, they would be butchered. So they escalate the oppression and the psychological tension.
Will they actually start a war just to keep the illusion and the power, or to save face or something? That's probably what is freaking out some minds.