He doesn't have a problem with git per se, at least not overtly. I think the confusion is that Emacs went with Bazaar over Git in 2008 essentially because it was a GNU project (and Arch had faded into obscurity by that point):

>We should use Bzr because that is becoming a GNU package. GNU packages should show loyalty to each other when possible, and in this case it is possible.[1]

But now its main repository is managed with git[2], Savannah as a whole makes extensive use of git,[3] and Stallman tacitly supports git by linking to git repos from his personal website.[4]

1. http://lwn.net/Articles/272853/ 2. http://savannah.gnu.org/projects/emacs/ 3. http://savannah.gnu.org/maintenance/UsingGit/ 3. https://stallman.org/stallman-computing.html

Probably because the FSF doesn't own the copyright for it. Without the copyright, you can't do fun things like forcing everyone to upgrade to the GPL3.