It's debatable if the moving of the chalice's "mystery of faith" phrase alters the meaning. It's debatable if the use of "for all" in the english translation changed the meaning. It's debatable if the additional words to the bread/chalice formula changes the meaning from the priest speaking in first-person (as Christ) to a narrative recounting of Holy Thursday. All these debatable facts give rise to EXTREME doubts to the validity of the new mass.
What's NOT debatable is that the changing/altering/additional words to both formulas consitute a mortal sin, for all in attendance. The changing of the formulas is public knowledge, therefore it is public sin.
I think this was a good summary of probably the strongest argument for claiming the NO is invalid. I agree, that, whether or not it makes the NO invalid, it was wrong to make changes that affected the Consecration. I question, however, your last comment:
"What's NOT debatable is that the changing/altering/additional words to both formulas consitute a mortal sin, for all in attendance. The changing of the formulas is public knowledge, therefore it is public sin."
I don't think it is public knowledge. It seems to me that the average Novus Ordo attendee has no idea that the formula is different. In my experience, the vast majority think that the NO is a vernacular translation of the Tridentine Mass and that the only real difference between them is the language.