I really appreciate antirez's point on this, "Mark" definitely seems to be a person with their heart in the right place but lacking tact and being intolerant to decisions not going his way; especially given the technical work this change would necessitate the change does not seem appropriate.
That said, I hope that in time the technical world will settle on some alternative to ensure we can talk freely without distracting or offending folks.
A few years ago I was in a meeting talking about database options, hitherto I had used "master/slave" to describe this database topology. In that meeting was an African American co-worker ("Frank") and as the words left my mouth I realized that completely irrespective of my intent I brought into the room the spectre of times past. I've no idea how Frank felt about it - but all of a sudden I had lost all ability to continue my point. I paused and said something that amounted to: "you know,... that phrase is fucked up - let's not use it - what words should we use?" and Frank suggested we look at what terms Amazon uses; they used "source and read replica" and that's what we went with. I've never regretted recoding my use of words on that one.
If there's anything that this post-Trump era has really brought into focus for me: it's that my privileges of being white, able bodied, and male results in me being least well positioned to say what is offensive or not. If you think it's offensive, open it up to the rest of the room and establish how to move forward.