All miracles are works of God. When determining whether or not a miracle is to be attributed to someone - Blessed Mother Theresa of Calcutta, for example - it is understood that the miracle is actually done by God, but that it was through the intercession of the person to whom it is attributed.
All of this is understood by Catholics and so among themselves they may speak or write in a shorthand that is mutually understood, but to an outsider can be confusing.
There are a lot of things I thought were confusing till I actually investigated them myself. Makes perfect sense to me. I know what the Pope is saying. Only someone with a bigoted agenda would make the claims put forth in this thread. Ugly.