To be clear, then, you recommended, as salient, 1) a book you haven't bothered to read, 2) to address a topic that wasn't being discussed, 3) in the hope that one day you could use it against someone who wanted to argue about Judas ... and you still believe that it IS a valid part of the argument. 
How would you even know it's "an interesting way to broaden the debate"?
Just to be crystal.