The NCAA "reconsidering" would mean admitting that they were wrong in their infinite wisdom. That. Will. Never. Happen.
The better approach by Spirit Lake would have been to sue the NCAA. Basis you ask? In Michigan all Central Michigan University needs is approval of one of the five Chippewa/Ojibwa/Ashinabe tribes in the state, and specifically, the geographically nearest.
Why doesn't Spirit Lake get similar, dare I say "equal", treatment , meaning, they're closest to UND and their approval should be enough (being one of two, which is better than one of five mind you).
But ... too little, too late.