At the Doylist level it was. But few of my players if any have read Oath of Fealty. Whether it’s a Niven & Pournelle reference at the Watsonian level is something that I’ve never really committed myself about. There’s no reason that it should be: Todos Santos is the name of several towns and villages in Spanish-speaking countries and, I imagine, any number of churches in Spanish-speaking and Portuguese-speaking countries.
i suppose I ought to re-read Oath of Fealty. I don’t recall mind alteration being a big thing in it.