Personally, I don't think the Catholics should have adopted use of the Chimera organ as a 'commandment from god'. It directly goes against the idea of magic being a miracle of God, if suddenly everyone's a miracle worker. Anyone who performs a miracle becomes a saint, but now miracles are common place. Most likely what would happen is that the moment these organs were discovered, the catholics would have declared this a sign of the coming of the apocalypse, with God saying "Ascend to be miracles yourself. Become prepared, for I have granted your world with these miraculous instruments so that you may prove yourselves at my second coming *Jesus can be heard muffling laughter in the background*." Likely, the Catholics, and most religions for that matter, will declare anyone who is compatible with the organ to be the chosen ones of God, while anyone who becomes a Chimera is a pagan and has rejected God or something.
