[YeGoblynQueenne]

>> Long _natural_ lifetimes are a fundamentally at odds with evolutionary progress.

I'm not sure I see that. For example, humans live many orders of magnitude longer than bacteria and yet we have both evolved just fine.

Anyway, I don't see why a species is pressed to evolve quickly in absolute terms. If all species on a given world evolve lifetimes many orders of magnitude longer than on the Earth, then there's no reason for any particular species to hurry.

I think how long or short a species' lifetime is can only be understood in the context of the environment in which it evolves. In any case, we don't know anything about life on other worlds, and my point is that we can't really make such big assumptions based on the single example we're aware of.