Again, here's what we KNOW ...
1 ) Pablo's publicly-known destructive activities (sewing division and chaos, whether publicly or by spreading gossip)
2 ) Pablo's expressed scorn for Traditional Catholics, placing them beneath Satan.
3 ) Pablo rarely attends Mass, and when he does it's to make contacts. What's his motivation for being at front and center of a Traditonal Catholic group at all?
4 ) Pablo's machinations against the St. Benedict medal.
5 ) Pablo's attempting to conduct exorcisms without requisite authority or even Orders. Exorcists state that this is opening oneself up to evil influence/takeover.
6 ) Pablo's nicknames of "El Brujo" and "El Diablo". Why was he called these?
7 ) Pablo collecting pictures of people.
8 ) Pablo performing fake blessings (just one witness to this ... but Martin did not dispute it and felt she was credible)
9 ) Pablo claiming that Fr. Voight put a curse on his son. Why did that pop into his head?
10) Strange menacing phone calls (sometimes in Spanish) received from varying locations after running afoul of Pablo.
What else do we need, Martin?
Catholicus then mentioned Pablo possibly tampering food and speculated (admittedly) that it might be some kind of witchcraft. Catholicus also claimed to have seen a book on his desk about controlling people. Catholicus also described some other strange/unusual behavior. In these cases, it was admittedly speculation. If Catholicus were trying to fabricate things, she could have done much better than this. Was part of it interpretation imposed on some other strange behavior by her own mind? Perhaps. But I don't think she was making it up out of thin air. And 1-10 above make the sinister potential for these other strange activities MORE PLAUSIBLE.
Nobody here was hanging their hat on the certainty that Pablo was casting a spell on Catholicus' food. As someone astutely said, if the report was of Bishop Williamson sprinkling stuff in someone's soup, and that's ALL we had, it would have been completely dismissed or ignored. But look at 1-10 above for a while and let those things sink in.