It is so very easy to claim a miracle occurred.
In this case, there needs to close scrutiny of the evidence and verification of the credentials of the all involved (doctors, scientists and priests) and the equipment used to make the analysis of the Host.
If Novus ordo missae words are used for the Consecration, spoken by an invalidly ordained priest, how could he confect the Sacrament?
Sean will tell us "some" grace is comes from the Novus ordo missae, but he's knows, he's just blowing smoke.
Another a-theological conjecture.
Whether or not these particular “miracles” are authentic or not isn’t really the issue for you or Lad.
What you are really objecting to is even the mere possibility that they could be authentic.
Whatever homemade arguments you cook up come a priori to any particular miracle:
To your minds they MUST be false, and we can come up with the reasons why after the fact.
But whatever they will be, they will not be theological. They will just be the inventions of inept commentators.