The list isn’t about politically correct speech but more about the perception of what words have fallen out of fashion and/or become cliches.
Waiting for you to get attacked for using “blacklist”.
There's no way that wasn't satire
I'm looking forward to the day when a group of trolls, ahem, I mean concerned netizens, manages to find the right words and hype to declare 'main' an extremely harmful and hurtful word we should all avoid™.
Fortunately, for the primary git branch (which seems to be called 'main' occasionally) a good neutral alternative already exists: 'master' (like a master copy or a master key). Crisis averted.