The advancement table for the Kuni Purifier Akodo commander includes rank 1-4 air invocations and rank 1-4 earth shuji at rank 5 respectively (as opposed to rank 5). It seems odd that these schools alone don't get experience counted for taking rank 5 techniques in their technique category. This could be intentional to specifically dissuade them from getting Wrath of Kaze-no-Kami and The Immovable Hand of Peace but it could equally be an oversight so I'm bringing it up here.

Yes, that looks to have been the result of some copy paste errors.