I don’t get why people insist that Dark Ages should be negative.
Historically, periods which I think the game might describe as dark ages have provided huge benefits and opportunities for growth. One of the best times to be alive in medieval England just after the black plague or the fire of london. Sure, everybody died and everything burnt down, but lots of employment opportunities and infrastructure and construction work. WW2 was probably a “dark age” for England, but gave you baby boomers and computers (and more infrastructure and construction work).
Civ is a God Game. If you’re God, and your goal is to take you people to the stars, wouldn’t you push your people into a dark age to secure that if that’s what’s required? Feels very Asimov’s Foundation to me.
DAs and GAs should both have risk and reward. That’s more strategically interesting, and I actually think it’s more thematic and historical. I’m okay with Dark Ages having relatively more risk and being more situational, so they are mostly something you want to avoid. But it’s way more interesting if DAs are situationally optimal (yes, even in the end game) and GAs should also have some risk and reward so sometimes they’re not optimal.
Is this really so controversial? I mean, look at the tier 3 governments. Facism is clearly the “bad” one (ie evil, not something you’d personally aspire to). But Civ gives it bonuses. It lets you play evil and gives you rewards for doing so. That’s a lot more fun mechanically than just making democracy the only good government.