One of the most valuable books I own:
http://www.amazon.com/Trivium-Liberal-Logic-Grammar-Rhetoric/dp/0967967503
After reading the `statement’, unfortunately, it doesn’t appear that the Bishops have read it, or anything similar: their rhetoric and logic is pure, boiled spinach.
Unless the Pope himself is one of the bishops, a document written by more than one bishop is not authoritative. And as a general rule, any document written since 1970 by more than one bishop reads as vague, obtuse polito-speak.