It's a lot about what you value. Most of my ancestors were subsistence farmers, probably yours too. Doesn't mean their lives were all dark.
I read a local book about violin makers. I was shocked at how many there were, in the almost entirely rural community around here. To me, making a violin requires some pretty serious, specialised woodworking skills. But they document hundreds of local farmers - subsistence farmers - apparently having those skills. And they don't even count those who "just made a fiddle or two".
Which isn't to say there can be no such thing as dark ages. When there's so much war and chaos that no one has time to build much of lasting value, whether materially or culturally, that's pretty dark. Yet the few things that come out of such times and places (the English border ballads comes to mind, or the hymns of Paul Gerhardt) can be all the more beautiful.