This is mostly for large repositories where building the revisions graph takes a long time (aka 5+ figures revisions). I have two of those from $dayjob, most of the stuff I work with/on/for doesn't come even remotely close. Running this on a repo with 5 commits is all but useless.

And even then you still really only need run it once per repository, you can just cd/paste/return; cd/paste/return; … Hell, you'd probably have an easier time writing a script which looks for all git repositories and runs the command versus having to manually visit each and do so.