They were flying high on adrenaline at one point, but that feeling and the energy that goes along with it is not sustainable. I believe that the constables that pulled them over from the check stop noted that they seemed scared. I can only imagine that, even if prepared to some extent, this long in the bush has them beyond scared - perhaps apathetic as to what happens next. Unable to concentrate and make appropriate decisions leads to major mistakes and possibly life-threatening bad choices. This is why I think it’s not crazy that they would think about taking a row boat on the Nelson River (insane!). That or another poorly thought out decision has / will lead to their demise.