@Pyoro
Horse is not really casual food. Only small number of Horse who is old and can not participate in the tournament will be sold to the restaurant. Some will be stay with their owners for their rest life. Some is old and dead will be buried.
So it is not really casual, I haven't eat a horse meat once.
About the food taboo, well, in this chapter I feel none, that creature is just like lobster, and she tried so hard to make whole humanity in universe not able to eat it anymore. She make tons people loss job, loss food. She deserved her karma for her rest life. I wish Ison will not met her. She is just selfish centered woman, she thinks for animal but brought humanity down.
I decline she as human, She should stay with those lobster for the rest of her life.