Question I'm asking myself is, what's the likelihood there would have ever been fossil fuel deposits with the potential to kickstart a civilization?
There have been plenty of "barbarian" groups that coordinated on very large scales.
tl;dr: we've kickstarted civilization due to our harnessing of energy. If the venusians didn't have that option they would've probably lived as cavemen and couldn't have prevented or foreseen the disaster.
This is one of the reasons this story sticks in my mind.
And if at a slower pace that would definitely (or should have) resulted in quicker reaction skills/abilities than we have now with a 50-100 year timespan within where our established way of being will have collapsed.