No. you give me credit for a better sense of humor than I have.
That is their prediction: That when we search for these things, we will find them and they will prove to be the ID's fingerprints.
I dont see the difference between this kind of prediction and for example predicting that such a thing as a black hole exists. And that when we look for them we will find distant locations in space that will have spectrum signatures that we predict black holes will have.
A prediction is a prediction.
Now I do have an objection to *what* they predict, and how they will prove/declare something impossible without ID control. I discussed that below.