“And everyone knows that is is disengenuous to compare books written for a kosher market to secular fiction.”
It’s not unfair to hold everything, at least roughly, to the same literary standard. If there’s a trend of bad writing in this genre of books, like ZD implied, then it looks bad. I have no idea if ZD is right or not in this specific case because I don’t believe I’ve read any of the books in question, so I don’t really want to argue it any further.