You can dress it up in whatever flowery language you like, however, the priest himself said he has been using the internal forum for "many years."

As for your statement:  "Folks on the AL side want the internal forum to be able to say "don't care what the tribunal said, we've reached an alternative decision, the marriage was invalid." You are wrong about this too as decisions made via internal forum will never reach Rome's sacred and imperial tribunal. This is a positive development for the vitality of the Church.