Italic not Italian...very interesting but my main point regarding the headline is that the saint is Christian not Italian/Italic.
Even calling her Italic would not be correct.
της καλουμενης ιταλικης
Same adjective. That there was no political entity "Italy" has nothing to do with the use of the word in either the article's context or the New Testament's
Nor is there a different adjective in the modern everyday use. Google for example, "ιταλικη κουζίνα".
Didn't they build leaning towers? :-)