Another factor is that git was always FAST, and the most common operations (init, log, status, commit, checkout, push, pull) are not that complicated as people make them to be, so you can very easily start to use it for new local projects, and continue without installing additional plugins, unlike mercurial ... And at some point, when you wanted a colaboration hub or just a public remote repo, you just pushed your code to github.
Actually this is exactly what happened back then, which is why many people used https://en.wikipedia.org/wiki/Cogito_(software) as a frontend to git in the early days. That said, I personally find current git UX absolutely fine and I can't imagine being effective without having all those commands like git reset --whatever -p and git rebase --interactive.
Who are you exactly to judge people like that, oh failed incarnation of a tibetan Lama ???
He does not need an excuse to make a tool that has proven very useful to many (including me). In fact, I am grateful, that he chose to make it and publish it.
Certain tools are organized by what code goes together rather than by what user functions make sense to go together. It's part of what makes it confusing.
"F*ck this shit, make your own UI on top if you want to use this tool!"
I don't think Torvalds has a proper excuse for the pain and suffering he's inflicted on millions of developers worldwide :(
(To the people going: "Oh, it's Open Source!". Sure, so are Mercurial, Fossil, etc.)