Yes.
About 3 or 4 years ago we had a priest replace our Prior in our SSPX chapel, he was from Europe, (not sure where) and he omitted the Leonin prayers. The people were upset about it and I think it was two weeks after that he announced the reason for the omission is because it is only a custom in America, he said they don't say those prayers in Europe. Although he was in America for another two years or so, he never said them after Mass.
Well, there you go. That's what I thought. No wonder Europe has lost the faith (In France, less than 4% of Catholics go to mass and the other countries aren't much better off)
Anyhow, what goes on in other countries is no concern of ours, we have our long standing customs and that is what we need to hold on to and have others respect.