If this is true, which I don’t know, it isn’t a concern.
The greatest skeptic when it comes to miracles is the Catholic Church. When the Church considers whether to declare someone a saint or not, it questions any reported miracle and and any reported sign of sanctity. During the process of canonization, the Church appointed a person called the “devil’s advocate” (I don’t know is this is still true now.) The task of the Church-appointed expert was to cast doubt on anything put forward to make the person being considered for official sainthood. And he was supposed to do this with dedication.
This Church has been very cautious in any such matters. As you may recall, the local leaders of the Church were very cautious when Mary appeared at Lourdes to Bernadette. This is rightly part of their training and instruction, since there are always false prophets and visionaries and the Church takes its time to discern the truth, avoiding immediate acceptance of such a thing. I think myself that if there was a reported miracle on the part of Mother Teresa, it is best to suspend judgement until the Church accepts it. Otherwise the Church in the end may be held up to public and international ridicule, if it reacts to something as miraclous which turns out to be fake.