So yes no matter what some people said on Buzzfeed his religion is relevant. I do suspect that a Christian scholar writing a best selling work that was critical of Mohammed would face similar questions. I doubt CNN would fail to mention it if they interviewed the writer of such a book. I personally don't watch Fox because of the sensationalism but that doesn't excuse the fact that you can't discuss media bias with out liberal bouncing parroting FOX NEWS FOW NEWS over and over like it is some sort of magic incantation.
The writer of the article has an obvious heavy bias against Fox and is presenting an opinion piece as news so sorry if I don't put much weight to that opinion but the idea that the book was written simply as a piece of historical research is obvious BS. We have no written record of Jesus that doesn't come from the bible or was written well after his death. I haven't read the book nor watched the rest of the interview but it sure looks like typical FOX NEWS Derangement Syndrome to me.