Yeah, me to. I think that was always the plan, but nobody's had the time to go back, re-visit it, and make it so.
I'd say that most of the work of driving features forward in git is hunting down those various edge cases, taking the time to understand them, and explaining them to others. So if anyone's interested in flipping that particular switch it's very open to first-time contributions.
I wish `git-log`'s `--follow` wasn't optional so GitHub et al would show the complete history for files I `git mv`. Mercurial got this one right :)