Well, you know, Winegardner also brought many shock elements in Puso's characters, but it didn't make his book more interesting. Shocks are different, I believe, and the shock of disgust cannot help the work very much. FFC did some good shocking changes, for example, the killings of all 5 families heads instead of two - it looked great.
But when he makes people act in a way perfectly unnatural to their way of thinking, it is annoying, sometimes more than shocking. He changes their nature just because HE wants them to act so, not because they want or need it. If it would be a separate story, about different people, we might accept them the way he shows them, but since we know enough about them, and Puso developed to the utmost subtleties their characters, shallow, groundless and willfull changes in their nature, justified by nothing better than his wish, don't add quality to his work. Even shocking, they leave me rather disappointed than impressed. He was clever enough, I believe, to avoid many mistakes he made if he would take trouble, and listen more to Puso.