Its uniqueness is a selling point of the book, which is subtitled: The Discussion that Sparked an Atheist Revolution. That may be a little hyperbolic, but it’s true that the gathering has gained a certain historical significance, not to mention mythology. The four men – or should we, in the era of identity politics, say the four white, heterosexual men – have become heroes, less to an atheist movement than to an outspokenly rationalist one.
Well, rationalism also involves an act of faith, since one cannot use reason to prove that reason is the only way of arriving at truth. Belief can be a problem, that's for sure, but there's no way of getting around the need for faith of some sort. I myself do not have sufficient to faith to think that being is a fortuitous contraption.