Oh, I see "faith" as implying a much broader context in this article than "Christianity." He never mentions atheists and never uses the word faith at all.

I think he's talking about any process of making a decision, or coming to a conclusion, based not on the rational analysis of proven facts but... something else.

The article does mention conventional religion, but we also find references to other concepts -- astrology, fairies -- as well as the general idea of a divine plan of some sort that governs how everything happens (which denies free will and which might have been created in an infinite number of ways).

To me, the failure of astrology as a useful system of thought, or the nonexistence of ghosts, is so obvious as to be beyond debate. Conventional religion is far more complex, and still more complex would be faith in the everyday sense -- making huge decisions in spite of very few useful facts and very little analysis, which we are all forced to do (example: "What career should I choose?").

I think there is very little alternative to faith in such cases. So far from being a caveman's delusion, it's the only thing we have.