That's impressive. Together with (neo)vim as $GIT_EDITOR I can see that being really nice to use.
Now you could decide to systematize the "grammar" of your shortcuts somehow, and, well... it's definitely an idea people have had before. ;)
https://magit.vc/screenshots/popup-diff.png
Not an Emacs fanboy, by any means: I use Spacemacs. Magit is objectively excellent, though.