You framed it well.
That scene resonated with me, because it boiled down to essence one of the questions many people have: Is someone or something looking out for us, or are we just a collection of random molecules gravitating towards entropy?
What really made the scene effective was the priest who had lost his faith, and his pent up bitterness towards God for visiting on him his wife’s death in that manner.
Just his flat “There is no one watching out for us, Merrill. We’re all on our own.” response pulled at my heart.
You can't go thru a month of living without having to re-examine a dismissal of faith. You don't need aliens either.