Then you’ll know that language is ever-evolving, with definitions constantly being updated, either falling in or out of fashion. Maybe you would never address a woman with the title “Master” in an academic setting, but it’s currently being used and accepted colloquially. Specifically in this case, “Master” is not used as an honorific such as “Mister” or “Ma’am,” but rather to show hierarchy and ownership. And apparently it’s been rid of its gender specification in the OED, so
I can't tell if you're being purposefully obtuse or not, and I apologize for prolonging this semi-off-topic tangent, but:
1. Yes, I know how language works.
2. This has nothing to do with academic settings.
3. Show me the receipts of people colloquially using, and people accepting the colloquial use of, "Master" as a title of address in reference to a woman.
4. Specifically in this case, "Master" IS BEING used as an honorific. Tin Nyanko says, "Master Galaxia." She does NOT say, "my master, Galaxia." There is an obvious difference.
5. The OED has not rid the title of its gender specification. The OED merely allows for the common noun "master" to refer to women in certain uses.
If some people are unbothered by "Master Galaxia," that's fine, but it's objectively a weird choice and I don't see the logic behind it. It feels like sloppy writing to me. Even if Viz intended to be gender neutral, it's illogical and arbitrary to assume "Master" functions better as a gender neutral term than "Mistress" or "Madame" would.
Anyway, peace out!