3,000 years of recorded comets, only one known to hit the Earth!
OTOH, thousands of meteors survive entry and land each year. They're not news worthy unless lots of people see and hear one. I have heard/felt a sonic boom a few years back.
Humans have observed comets moving across the sky for a million years. They all make the news if visible by eye. Astronomers have recorded them for millenia.
Here is the only example of a piece of glass from a comet recovered: https://www.nationalgeographic.com/science/article/131011-first-comet-impact-egypt-fragment-science-space
The science in this movie is appalling. Comets don't even make craters, not even solid. It's not sci-fi, it's just a bad movie that validates Leftist's religious end times. The critics were right.