@dopeboykx
"from what I saw she's a musclehead + she's stupid clearly can't take any decisions."
I was replying to this part, she has never arrived at the point to make a decision that would exhibit anything too noteworthy to judge that she can't take any decisions.
You see a lot of headstrong people in manga and they are mostly the "instinct" type who goes with what their gut tells them to do. They live in the mountains/forest and they don't really need much intelligence like in a human society, they just need to learn how to live there(hunt, trap, make clothes, food, etc).
"Well, whatever her being the Tribe might be why her people been eating rocks"
When did they eat rocks? With the war for land going on most of the prey and the mountains are slowly being encroached with human colonies(shown geographically in the novel) so they had to move.
The advisor just wants to shift responsibility because she is lazy.