There is that little bit about “actions, gestures, and bodily attitudes”. Holding hands during the Our Father as near as I can remember came from the Charismatic Movement, but the gestures with the hands (orans position during the Our Father, and the incessant hand gesture toward the priest or deacon accompanying “And with your spirit” seems to have come from the progressive side.
Then, again, there is the issue of how long something can occur constantly before it de facto becomes law. I had heard in the past that it took 40 years, but recently Peter Kreeft said 30 years.
How that fits in, I don’t know. I have heard some posit that all law comes top - down, but Kreeft being a Canon lawyer and at least the impliction that some law starts from the bottom - up, I am inclined to think the matter is not so cast in stone.
Then, again, I am not going to take on Archbishop Sample mano a mano in a matter such as this. Which does not say I will not be an observer, sitting and watching (or standing).