It is much more incredible that Vatican II critics and "The Pill" blamers were never taught about confounding variables.  

Just FYI:  I have not read the documents since 1966 when, as a senior in college, I had to do so.  I bet I would find I did not like some of them today.  However, this business of not looking at the whole culture is, sad to say, uninformed in terms of how to determine causal effects.  On many topics, the Church does not want to employ sociologists (No, I am not one. Just a minor)  to research its own laity in terms of how many really do believe this or that, or, to try to determine the "why" to a lot of questions.  In my opinion, it needs a Catholic version of PEW to understand its own members.