I think Cardinal Law was incompetent and not a good shepherd, but I don't think he was a bad person at heart and I thank him for the idea of the catechism. While he was not a disciplinarian, I don't think he actively preached or promoted unorthodox doctrine. I think he has suffered ignominy and if he can serve this ceremonial position with honor, more power to him.
I guess its always easier to judge other people when your not in their shoes.