

I believe it did happen more than once. The reason why life on Earth has developed into such complexity is that the primordial soup, where life developed out of, has been cooking undisturbed from events like supernovae and such that would have wiped out everyhing (Earth istself as well as the whole solar system) nearby. Life could develop over several billion years, and cosmic events like asteroid impacts didn’t wipe out all of life. Remaining life startet over again.
If life developed on another planet with similar features like earth, it could have been wiped out by a nearby supernova, by a collision between two planets and similar events, before it got any more complex.
With all the world (at least western nations) drifting backwards at least into nationalism (some countries even at full throttle into fascism), this could be used as an advantage: Why not shifting the narrative into the direction, that a stable, clean and healthy enviroment is pinnacle of patriotism (like the narrative of a healthy body was used in national-socialist propaganda 90 years ago in Germany), along with renewable energy that makes each nation independent from others. Wind turbines and solar power for freedom, so to say. Things like coal rolling or similar acts like wasting resources will be deemed as un-patriotic then.