The fixation on Latin is so odd. It's not even a throw back to some original base, like wanting the Torah read in Hebrew or the Quran in Arabic or Hindus venerating texts in Sanskrit. Latin may have been current at the time of the NT, but it wasn't the first language of any of the NT events let alone anything before that. All you are left with is that Latin backers don't want transparency, they want to maintain enigma as another method of protecting their prerogatives of interpretation and control, That most of the popes since VII have fought that rear-guard action is a good thing..