The pre-historic creatures suffered incredible evolutionary pressures. While the meteor strike was undoubtably significant, other weaknesses challenged them every step of the way. Early creatures were highly vulnerable when they ate, as well as when they went to the bathroom. The early dinosaur bird, The terodactyls was extremely vulnerable to Darwinian selection pressures when the bird urinated due to the high pitched urine noise. Evolutionary pressure resulted in the development of silent urination of the pterodactyls, hence the name change and the silent “p”.

Betteridge to the rescue, here. Any question with "pinpoint" and "paleontology" can be confidently given a "no" answer.

Beyond vacuous answers, this isn't a good article:

We know the main reason why the age of the dinosaurs came to an end

No, not really. Dinosaurs stood a good chance of regaining primacy after the asteroid impact, due to generally having an "r" reproductive strategy. Dinosaurs had lived through other weird episodes, the Carnian pluvial episode, and the end-Triassic mass extinction. Close relatives of dinosaurs lived on: we still have crocodiles and alligators today. There's a lot of argument.