The idea of this thread is good, the scheme is valid (with the little exception of Fatigue which is definitively a 5) for the many thugs going to support an army, or taking indie/enemy provinces with little defence.
As I have usually seen it, "thugs" are commanders equipped (with an eye to convenience) for some specific task.
So i.e. i consider thugs even the indie mages with N and A random picks which I can give eye of aiming and boots of quickness and a Ethereal Xbow/Black Bow of Botulf, Thunder Bow and so, and send to support an army. How should I consider them, SCs?

For them the precision is important, as I want it boosted by Eagle Eyes and Aim before he/she starts shooting.