You might be on a committee that thinks that a candidate needs that extra training before they ought to be ordained. They could use some time in a hospital setting or in a real world setting before they earn that REV before their name. If you are, then let me tell you something that the seminary student under your care can’t tell you: students can’t afford it any longer.
The changing profile of seminary students has been much remarked upon. Whereas 50 years ago almost all seminarians in North America were white men who had recently graduated from college, today women are a major presence in seminary classrooms, as are (to varying degrees) ethnic and minority groups. Today’s students are also substantially older by the time they get to seminary.