Yeah, but no one here uses that term how you use it. So I don't see it your point. I can say murder means a gathering of bikers, does that mean language has evolved - NO.
Yes. It's not a murder. Just some guy killing another.
It's like saying Cannibalism is a crime.
From your PoV - yes.
PoV of someone in Ancient Greece - yes.
From PoV of someone who grew in Papua New Guinea, it's a sign of respect. For someone in Africa, cannibalism is a part of life.
Any highly debatable thing was at some point probably done by some society. Context dictates which behavior survives. Surviving Behavior is encoded into traditions. Traditions become morality.
My impression was that only those down in the ring can strike at the emperor. I guess it depends on rules-lawyering. Are White Chain, Cio, Alison in the ring?
Angels aren't suicidal I think (other than White Chain). If Alison strikes now, she and anyone that defends her are dead, barring interruptions.
EDIT: Corrected, ritual eating was in Papua New Guinea. Not in Africa.