"We did something wrong which we don't want to talk about, and as part of an agreement to save ourselves from a lawsuit we are now apologising publicly for that bad thing we did and we promise not to do that bad thing again"
https://github.com/about/leadership
http://web.archive.org/web/20210101021219/https://github.com...
I, for one, applaud Carrie Olesen's personal responsibility in admitting to siding with Nazis and firing a Jew.
Also, they are talking about the issue to a more than reasonable extent than what other companies have in the past.
The comment is clearly a statement by the commenter of an imagined subtext of the GitHub public statement.