Teen:
You’re repeating the same questions, but without taking into account all the evidence that’s been presented to you negating the “Traditionalist” interpretation of this passage.
I suppose the only thing new I have to add is that the Papal Office is not an “ecclesiastical dignity,” such as a Cardinal is, but is instead a divinely-ordained and constituted institution of Christ. No Pope can possibly bind his successor to something disciplinary, and you won’t find anything in the annals of Catholic history or theology to suggest otherwise.
Again, if this were the case, every revision of the Roman liturgy from 1570 to 1962 would be invalid, even revisions done by Saint Pius V!
The strong-sounding words of Saint Pius are conventional legal formulae in papal documents of the day, not something binding on future popes. When the Breviary was reformed by Trent, the same type of language was used; and when Saint Pius X revised it some 400 years later, he too used the same words! Tthe Jesuit Order was suppressed by Clement XIV “in perpetuity,” only to be reinstituted by Pius VII!
And again, Pius V himself refers to the Tridentine Mass as a “new rite.”
For more detailed documentation, see
“Did Pope Paul VI Have Authorization to Create a New Mass?”
I could go on, but it’s pointless if you’re just going to keep brining up the same objections, and not take our answers into acount when you counter-reply.