LOL.
Fools and their empty symbolism - idolaters to the core.
One may as well ask why the BBC doesn’t strip him posthumously of his title as host of Jim’ll Fix It or Top of the Pops? Ultimately it is pretty hard to pretend he wasn’t a host of a show when he in fact was, even if one would like to deny having honoured him with such at the time. Likewise, one may not be happy he was given a papal knighthood but he was, and that is that. He does not have such a knighthood now just as he is not now the host of any BBC programs, and that is all for the good.
Unless these fools think somebody in the secret crypts of the Vatican has the magical power to time-travel back 22 years, walk and talk backwards, hit the retroactive "un-friend" button, and then "Poof!" It never happened!
Reparations in a parallel dimension! Demand symbolic satisfaction!