agreed Forestwalker.
as for the archaeology, the first thing I see a red flag popping up is the dating. they either left out how they dated this, or I missed it in my reading.
C14 dating only works on biological matter/artifacts. an earthen vessel

can't be dated that way. perhaps they were using stratigraphic evidences or other equivalent comparison, but that is even less accurate under water than if it was on land and you could see the layers.
Don't get me wrong, there are experts in this kind of dating, and I am not one of them, but I am interested in learning more about the site notes and database to learn why and how they come to these conclusions.
Semitic spell bowls are common, and yes the Pagan worshipers used spell scrolls, tablets, cups etc as well (from what we know of physical evidences and textual interpretations).
I can see the logic of a pagan invoking the "Christ" title, or name on the cup/bowl. especially depending on the audience it was intended. Kinda like how we have some religious "sects" that proclaim they are "Christian", while their teaching denies who Christ really is). the people of the time (assuming the dating is close, but I have a feeling they are "moving up" the date within their range of guestimation so that it is "closer" to a "source") were mostly illiterate, and there was no "Bible", well with the exception probably of the Septuagint.
So many "Christianities" came to be, especially before our history of orthodoxy and heresy hunting.
in conclusion:
* I doubt it is as old as they are saying.
* It may in fact be referring to Christ Jesus, but out of context, and for a particular group, nothing to be assumed about a magician-canon reference. (though that is what they are somewhat attempting to make it out as).
that's off the top of my head without knowing more of the team and their research.
