why “gezera” when it might be possible to do something? At the yam suf, Moshe is told not to daven, but to act. Maybe, you don’t need to run away from the meteor, but simply shoot it or send a rocket to confront it and redirect with a magnet – even a small change far away will be enough to save the planet, or maybe just EY … Same as when a person is sick – is it a gezera or a cure is possible? A poshute yid and a Rabbi Dr may come to poosite conclusions …
Maybe, you have a similar cognitive dissonance with the meteor: you clearly need to know physics and engineering to confront the meteor, but this would require you to admit that going to college is useful, and you would rather have the whole world destroyed than admit you were wrong. Understandable.