That's what I call the old atheistic humility which I share, and which contrasts with the new atheistic scientism. I make the same point in the article below, for example, and in lots of others. Cognitive science shows that we're far from perfectly rational. Many cognitive biases and fallacies are natural to us, and algorithmic thinking differs from the intuitive, heuristic kind.
Still, I think our nonrational products can be evaluated according to their aesthetic and ethical merits. Not all leaps of faith are equally meritorious. Some are cliched and tainted by fraud (as when the religious person grows up in a religion and thus has it effectively forced on him or her).