"Bishops have been known to broadcast... material [that] is private as well as opinion."
How can what is broadcast be private? Bishops have also been know to cliquishly cast off, and even to cast off on their own. There seems to be panoply  of "certain bishops" who launch broadsides against (fill in the blank). All of this talk highlights that while the Catholic church may have  a panoply  of bishops, it is experiencing a dearth of pastors.