I think the point is that Kirk presents the human-acceptable side of hard science.
We are different Myers-Briggs types, and most people don't think, and that is why all our politicians are non-scientists. There are a lot of sheep out there who just want a quiet life and if going to Church on Sundays is part of that, well so be it.
Is this about looking for a moral framework or at least some reference points, if not a full 10 commandments.
A lot more peole than atheists tacitly know that God doesn't exist, but they want something to believe in.
I reckon Christopher Hitchens made a pretty good job in his own way:
“Beware the irrational, however seductive.
Shun the 'transcendent' and all who invite you to subordinate or annihilate yourself.
Distrust compassion; prefer dignity for yourself and others.
Don't be afraid to be thought arrogant or selfish.
Picture all experts as if they were mammals.
Never be a spectator of unfairness or stupidity.
Seek out argument and disputation for their own sake; the grave will supply plenty of time for silence.
Suspect your own motives, and all excuses.
Do not live for others any more than you would expect others to live for you.”