I'm not saying it's a bad thing, but saying "to check if they have the wrong settings" is exactly what we want to avoid. Therefore, to avoid the General reprimanding Marshals for doing what they want, the General shouldn't be able to see the Marshal's settings.
If the marshals agree to a formation, but one of them forgets to actually set it, what's so bad about the general being able to remind him?
The general can, as it is, just as easily reprimand him after the facts. Reprimands are usually only given after the facts, anyways, as nobody cares until there's a battle where it would have mattered.