Personally, I would settle on the side of updating the terms and not being too worried about it or expending further thought, because the use of these specific master/slave terms isn't something I'm attached to. It's a habit I don't mind updating.
I also think, tentatively, that it's not really for me to decide how big a deal this is. I just don't have the experience to understand how big an impact these terms might have. It seems plausible that distractors would get thrown around at a time like this to expend energy without attacking any real structures which would make life more uncomfortable, and I appreciate your bringing it up because I might not have thought about it in those terms.
For myself, I'm happy for these terms to get updated, and I intend to do what I can to focus on continuing to educate myself and try to learn how I can be more effective in deconstructing things that cause harm to people, and to trying to learn more about what it means to be anti-racist.
In terms of values, that's how I think I want to approach something like this, and I respect that other people have a different approach-- I don't mind, as long as the approach people take isn't rooted in things that will perpetuate violence and harm toward people.
If the black folks discussing the topic seem to think it's harmful (and based on the upvote counts they have a ton of support for that opinion) then I'm inclined to agree.
To put it rather bluntly, I wonder what the opinion of the protestors on the street would be while they're facing down rubber bullets and tear gas. I imagine they'd want to fry bigger fish.
We need serious reform in our policing and prisons in the US. Every time serious reform is demanded in any real way, the distractions get brought up and the real issues are minimized. I don't believe for a moment that this is accidental.
As someone who has black siblings who are now having children of their own, I am infinitely more offended that the real issues get strategically minimized. Look at the reactions to these threads for an example. Look at how many people (black and white) are saying it's an [0]"obvious distraction" or a non-issue.
[0] https://www.reddit.com/r/programming/comments/h8w36t/github_...