I think a good chunk of the confusion around "Mitis" and "Mitis II" has been the wrong assumption that a quicker process means the attempted marriage will be found invalid. The default position is still that it will be quickly found valid.
What part of Msgr Pinto's description of Francis' channeling the Holy Ghost did you not understand?
...following the invitation of Christ, present in their brother, the Bishop of Rome, to pass from the restricted number of a few thousand annulments to that immeasurable [number] of unfortunates who might have a declaration of nullity --
The above can be found in the link I provided in Post 4 above.