That may be the greatest criticism I have to make: it's the chain of command that ultimately decides. There aren't a lot of appellate bodies, and they all consist of military members. I often hear it said that senior officers tend to respect first-level decisions, whereas that is not the case in the public sector. There really is an independent umpire and an independent committee.
I haven't yet asked whether complainants can be assisted. Can they be assisted by someone who can help them in their efforts?