I see your point, and I'd much rather see git become a standard rather than a Visual Source Safe clone.

At work I chose (yeah, there was no VCS in use before that) mercurial mainly because we're a small .NET shop, and a nice GUI like TortoiseHg is a big selling point when you're trying to encourage people to use such a tool. There are actually lots of developers who just <i>hate</i> using a CLI. And I don't know how things have evolved, but git was not known to be very windows-friendly two years ago, even apart from the GUI thing.