Disturbing a grave is a crime.
Do you wish to make pretending to baptize someone a crime as well?
Otherwise, there is a difference between physically disturbing someone's remains and merely using their name in an empty ceremony.
Personally, I would far rather have my remains disinterred and scattered to the wind than have my name used in an evil, wicked, bizarre, satanic ritual ... and every one of my departed relatives that I had the pleasure of knowing felt exactly the same way.
Of course, I am fortunate enough to be descended from a line of staunch Christians ...