I am sure that there might be an explanation, but I would be curious to know why.
Maybe they had written all, what they had to write. That happens, not only to spanko writers, even to world wide known mainstream artists.
Think of Jerome David Salinger , Catcher in the Rye. He had written some short and some longer stories and then that book. Later........... only short before he died the most people learned that he had been alive that long time.
But maybe there has been a man who made the decision, that he needed more a wife in his bed that a scribbler in the attic.