Oh, where to begin.  Weinandy complains of "ambiguity" in the pope's writings and statements.  I would call it recognizing the reality of the human condition.  We have faith, we don't have certainty.  The sky will not fall, the church will not disintergrate if we hold different views on various teachings on faith and morals.  It has ever been thus.  Relax , Cardinal.  Live your faith and don't worry about alleged heretics in your midst. And asking God for a sign and it shows up for you the next day?  Oh, my.  I stopped doing that in the third grade.