text: I think you misunderstand a key principle.
  
  It's the couple that either made a mistake (they themselves minister their own union in front of the Church) or they didn't live their marriage with great generosity, taking advantage of the ongoing graces that God is waiting to give of them.
  
  The Church merely takes the couple at their word. In this sense the Church takes their word more seriously than the couple!!!  It's up to the couple to show that a previous defect existed PRIOR to their marriage.
  
  The Church is treating the couple as if they are adults.