Have you looked into the other 249 ;-)?
As Catholics we have a choice - the preference being for burial vs cremation. I believe there is a community of monks now offering burial in earth friendly boxes in fields without markers. "Dust thou art and until dust thou shalt return", be it sooner or later.
There are more than 249, NYer, and many of them are not even Christians. As I said, you have Indian gurus who are sitting in tropical heat and not decomposing. It has nothing to do with devotion or purity of heart.
My point was that St. Bernadette was exhumed, a wax mask placed over her head to make her look like someone who is just sleeping, which is pure deception because that's not what she looks like. Why does the Church find it necessary to deceive poeple with such nonsense?