Chapter 8 in "Amoris Laetitia" is a deeply confused and troublesome section riddled with ambiguity about conscience, objective sin and subjective culpability, and is open to heterodox interpretations. It is disingenuous of Cardinal Wuerl to claim otherwise, especially in the light of the recent theoretically private correspondence between the Pope and the bishops of Argentina. 

The doctrine and discipline of the Church is that marriages contracted by Catholics after divorce and without annulment of the first marriage, are adulterous, objectively gravely sinful and constitute a bar to reception of the Eucharist. A position reaffirmed vigorously by Pope Saint John Paul. 

Francis has set forth an ambiguous compromise which speaks of re-integrating these Catholics, without saying how, and contains two footnotes giving a nudge and a wink to those wanting to overturn Church teaching.