From a more theological point of view.
There is no ‘Vatican’ (it is a construct of man, liable to change. Maybe we should move it to France

).
There is no ‘Canon Law’ (it is a construct of man, liable to change, when was the last change, a couple years ago

).
There is a Bishop who has the fullness of Orders which gives him the authority to govern, teach, and something else.
There is the head of the college of bishops who has a certain authority between bishops, but not over the faithful (that would be us

). See SUBSIDIARITY
acton.org/publicat/randl/article.php?id=200
The documents cited here have delt with opinions on how things could be done. Could is not the final word. nor is Should. They have much authority if your outlook is legal. In 500 years, there may be a big overhaul of all this stuff. Remember that the perfect liturgy will be done only in heaven when we all know EXACTLY how it IS done.
The only way your precious residents of Vatican Hill can do what they want with impunity, is to remove the bishop from his diocese and install a more pliable bishop. This has a long tradition (many of the Church Fathers were exiled).
Here is a document I’ll cite:
Acts 20:7 On the first day of the week, when we were gathered together to break bread, Paul [began] talking to them, intending to leave the next day, and he prolonged his message until midnight.
I suspect, as a Bishop, Paul failed to get the proper translation from the Vatican but kind o’ worked out a liturgy on the spot.
I can see the smoke is starting to come out of your ears :banghead: , so I think I will leave it at that. It’s been fun.