Yes, possibly. I note though that your examples aren't examples for "hasty decisions with result that wasn't planned". Which countries or who were outraged about the Chernobyl media blackout? Only the usual suspects of anti-nuke-protesters. And was it really a decision that is very much different from that in a liberal democracy such as Japan? The Ukrainian famine: probably not sufficiently explained by "hasty" decisions turning out to have unintended results. Nobody in the ruling oligarchy dared to raise objections. The ruling oligarchy was not capable of a rational decision. And Pinochet's Chile: what was unintended?

Even if there examples of the speed of undemocratic decisions backfiring for the ruling oligarchy, I think it is rather the exception and not the rule.