I'm confident in what I say here because I've written hundreds of articles on religion and philosophy (link below).
Not all smugness is equal. A modern secularist's smugness might be backed up by science and technological progress. What's Paul's smugness backed up by that's still tenable in a neutral forum?
Have a look at the Submit page on Interfaith. You see where it says, "The purpose of Interfaith Now is, yes, to spur dialogue about particular faith traditions but also to spur dialogue between faiths themselves. This includes nontraditional systems of belief not yet listed on the publication and stories on atheism, agnosticism, etc."?