The definition you cite is not substantially different from what I provided off-the-cuff. "Sacred entity" is a collective term for "sacred person or thing", and "holy" is synonymous with "sacred". Both the Virgin Mary and the Pope are holy persons to a Catholic, and the reference to the mentrual blood is obscene by any standard.
Well, the Virgin Mary wasn’t maligned, only a statue of her irreverently used to take shots at fanatics, but I can see how the Pope’s treatment might qualify as contemptuous.
Treating men consider by some as sacred with irreverence is foundational to South Park. If this universally qualifies as blasphemy to Catholics, it looks to me like you’re operating with a chip on your shoulder by promoting a mortal to virtual deity status. It looks like you’re saying obscene references to him are on the same level as obscene references to God, both being blasphemy.