Fr. Robinson hasn't been keeping up since his grade-school science classes. In order to salvage the Big Bang theory, modern scientists have actually had to abandon uniformitarianism with regard to the progression after the BB. They now claim that it went through various phases where the laws of physics were different, a hyperexpansion phase, etc. And the alleged age of the universe was "calculated" based on reversing the current expansion rate of the universe, whereas it's obvious that it would have expanded much more rapidly in the beginning.
It's all garbage, and the Kolbe Institute does a terrific job of ripping it to shreds.