Agreed. His book was the first I heard of this theory, many years ago, in a college class called "Bible: Myth and History". I was a cowardly atheist (agnostic) at the time. Now I've accepted Jesus Christ as my personal savior. I'm in a four year Bible study program and it's based on the Historical Critical Theory of the Bible. I believe all of what's written in the wonderful library we call the Bible is divinely inspired, but I believe some books were written by some authors and some books by others. I believe some books were written by more than one writer (for instance, Genesis) and edited by another.
But I'm finding this is not a popular view on FR. Oh well.