The same would apply to any other combined ethics teaching such as biomedical ethics. I argue that each field has its own set of issues.
Life is full of gray areas.
In order to best apply judgement, one needs to have experience of gray areas and how they are dealt with in real life as well as supported by academics. One aspect of a teacher's role is to present information. Another is to develop the student's skill in applying that information to life events. To generalize it. The same would apply to any other combined ethics teaching such as biomedical ethics.