master is far more offensive especially in the United States
Are you offended the idea of a master key or say, mastering C++? Remastered albums?
Researching all that is surely somebody's Master's Theses.
more people are offended by the word master than git, I still don’t think it was a good comparison, also the connotation of Master Theses, mastering C++, remastered album is also much different.
From wikipedia [1]
Git is a term of insult with origins in English denoting an unpleasant, silly, incompetent, annoying, senile, elderly or childish person.
GitHub - hub for gits (persons).
[1] https://en.wikipedia.org/wiki/Git_(slang)