Maybe these police free zones are an example of "going too far."
I am also not certain that "Master Bedroom" ever referred to a master-slave relationship, but I can see that it could be interpreted that way. To me, however, a MBR means a bedroom with a bathroom accessible only from the bedroom, nothing more, nothing less. To be sure, "a bedroom with a bathroom accessible only from that bedroom" is a bit unwieldy, so it desperately needs a more succinct term. Presumably, the term "Master Bedroom" was settled on some years ago. Maybe it's time to revisit that terminology, but I have no good suggestions . Bedroom/bathroom combo? IDK.
I find this to be a rather fatuous dispute, but maybe I am looking at it from too white a perspective.