I was originally furious about this, because this change doesn't bring any value to anyone. And even if master in Git was based on a slavery metaphor, I would be okay with it... Just as I'm okay with 3rd party packages that use the words whitelist and blacklist.
I don't get offended at this level and if anyone does, well, I respect that.
Welp, it's only Github, we can switch to something else (Gitlab) if they make it hard to bear.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.