Hussar
Legend
How does that describe Hyboria at all? Yes, there is a tyrannical government, that is overthrown and King Conan takes over, ending tyranical rule. I don't recall any environmental disaster. There is zero sense of a society in decline - most of the societies are growing and thriving. The societies in decline are all decadent or evil. Rampant fear or distress? Where?According to Wikipedia: "Dystopias are often characterized by rampant fear or distress,[3] tyrannical governments, environmental disaster,[4] or other characteristics associated with a cataclysmic decline in society." That is, like, a really good one-sentence description of the Hyborian Age.
As for the happy farmers, they would have been largely serfs or slaves.
Just because a setting isn't a utopia doesn't make it dystopian. A dystopian setting would be a horrifying place to live. There's no sense of that in Hyboria as a whole. Sure, Stygia isn't exactly a bastion of righteousness, but, Aquilonia is pretty nice. Cimmeria isn't described as a horrific place. Harsh, sure, but, again, harsh doesn't make something dystopian.