anchor: Aside from pure anti-Jesuit animus, this nuance probably arose from the work of some 17th-century Jesuit theologians who imperfectly employed a method known as casuistry in resolving questions of moral theology--an approach that gave the broadest possible leeway to individual behavior.
positive: Casuistry might give a great deal of leeway to individual behavior if improperly applied.
negative: He really loves Jesuits and everything about them.