Since the entire idea of git is to undermine Microsoft/Windows, I think the Wine folks consider this a great thing. In RMS's perfect world, there's no gcc, no git, no gimp and no gnu for Windows.
That's a rediculous claim. git does have a few advantages that svn/cvs/... don't have, such as distributed repositories. But in my opinion it has more disadvantages than advantages, especially the poor usability. The fact that there's no windows port (yet) is more likely due to it's usage of perl (and I guess ActivePerl has it's problems...).
- Thomas