When it comes to a good bit of publicity, the Catholic Church has a long and famous pedigree. From visionary maids in Orleans, Star Chambers, renouncing the Solar System as heresy, and excommunicating English monarchs to condemning the use of disease prevention during sex, promoting an ex-Nazi to high office, and pouring guilt and censure on people with same sex feelings, there's not much more to do.
Taking the fairy story onwards in creating miracles and saints is more spin showing how really nice the whole outfit appears. Even the benevolent twisting of its own rules is part of the act. It makes all who take it in become complicit in the act and therefore locked into the system that little bit more.
This is nothing more than priests and shamen have been doing on a local basis for five thousand years and more. Power and social control.