“Benedict really cared about the job he had to do, and in resigning demonstrated that the responsible use of power sometimes requires a willingness to give it up.”
Pope Francis has made it plain that he doesn’t like “casuistry.” But this form of moral reasoning can be made consistent with Francis' teaching on God’s grace.
From 2019: The imaginary encounter between Ratzinger and Bergoglio is imaginative, and emotionally satisfying. But we need to remember that it never happened.