I think its very much a matter of personal preference Ripppe.
I would feel cheated if I was able to win all the scenarios, just by giving a few orders at higher command levels.
The game would just become a spectator sport, watching one AI against the other, with very little user input.
Its perfectly possible if you have a strong enough force of course.
I know Peter has won this scenario with only giving a dozen or so orders.
I personally enjoy having the option of playing it both ways, depending on the mood I am in.
For a real challenge though, when the odds are stacked against you, there is nothing like having to put thought into every move you make.
Like a huge chess game where one false move at the wrong moment, could spell disaster.
As a guide to if you are over micro managing keep an eye on the on Map Boss's command load.
If it is excessively high, you are managing to many units, and if you have the scalable orders delay option turned on, the game will punish you with extended command delays.
Its not the size (Platoon, Coy, Battalion, Regiment, etc) of the unit you move that contributes to micromanaging, its the number of formations, and units you have under your direct control.