Please consider to not bother users with new terminology in this thread. This is an Arduino forum based on well understood technical terminology.
In technical discussions conventions are more important than wrong understood political correctness. Slavery is a fact and has been a fact for centuries, so that the wording is well understood and unchanged during centuries, and application to other than persons can not be an offence. And replacing master by controller likewise will cause confusion for absolutely no practical reason.
Feel free to open your own thread about the introduction of new I2C terminology in Arduino context and wait for reactions. Will NPX also consider to rename male and female connectors for some political discomfort?