If this is a discussion, why only benefits are being mentioned?

It seems WordPress values poliglots, however its chosen tool, GitHub, only is comprehensible for a subset of users, in english language.

And Github is full of ethics problems (…) –also covered here on WPTavern — to no surprise, since it is a tool owned by Microsoft.

They say there is “no tool like Github”.
Well, just one among responsible and equivalent alternatives available, “Codeberg is a collaboration platform and Git hosting for free and open source software, content and projects.
Codeberg is not run by a company, but is in the hands of its users – via the non-profit organization Codeberg – feel free to join!”