Let me make an analogy: in the past, when the Holy Office was the senior congregation in Rome, it had the final say on bishops' appointments. As a consequence, we got characterful defenders of the faith. Ann Widdecombes, in fact, mutatis mutandis.
Paul VI changed all that; now the Secretariat of State is at the top, and it has the final say. As a consequence, we have nice guys as bishops, with all that implies.
Bishops need to be episcopal.
Diplomats need to be diplomatic.