>>23350945
>it wouldn't in real life
Why not?
https://en.wikipedia.org/wiki/Cretaceous–Paleogene_extinction_event#Effects_of_impact

>The re-entry of ejecta into Earth's atmosphere included a brief (hours-long) but intense pulse of infrared radiation, cooking exposed organisms.
>the impact would have created a dust cloud that blocked sunlight for up to a year, inhibiting photosynthesis
>According to models of the Hell Creek Formation, the onset of global darkness would have reached its maximum in only a few weeks and likely lasted upwards of 2 years.[192] Freezing temperatures probably lasted for at least three years.
>the sea surface temperature dropped as much as 7 °C (13 °F) for decades after the impact. It would take at least ten years for such aerosols to dissipate
>A paper in 2013 by a prominent modeler of nuclear winter suggested that, based on the amount of soot in the global debris layer, the entire terrestrial biosphere might have burned, implying a global soot-cloud blocking out the sun and creating an impact winter effect. If widespread fires occurred this would have exterminated the most vulnerable organisms that survived the period immediately after the impact.

The K-T impactor was 10 to 15 km wide. Axis is about 30 km and is being actively accelerated.