Yeah, scientific "evidence" is regularly being debunked.
And, if there is one that stands up to scientific scrutiny, there's always the possibility that the devil could have simulated such "miracles". It would be a very simple matter for the devil to swap out the bread for a piece of heart tissue, with the correct blood type (matching the Shroud, for instance), etc.
I note you are always emphasizing the possibility the evidence could be tampered with, bunk, diabolic, etc.
What you never allow is that it is possibly authentic (i.e., even the possibility is a priori unacceptable/impossible).
That's YOUR error, not Williamson's.