Well, git getting developed didn't really do much to move people off Subversion: at the time, multiple DVCSes were being developed, like Mercurial, Bazaar (derived from Arch) and Git...
What got people to switch to Git (arguably, worst UX among them, but fastest for most operations) was GitHub combined with the rising popularity of Linux. But mostly GitHub.
What got people to switch to Git (arguably, worst UX among them, but fastest for most operations) was GitHub combined with the rising popularity of Linux. But mostly GitHub.