As Balko has documented time and again, SWAT raids and SWAT-served warrants far too often lead to the killing of family pets and of innocentpeople often in the wrong home, including children.
Making the storm troopers all be the clone of Bobba Fett completely took out any feelings of care for the empire that anyone had secretly harbored, remember the scene in clerks where they talked about if it could have been wrong to blow the death star up because of innocentpeople working on it?