Having a GUI that one person can use to control everything the faction members below him do, will add more micromanagement to the game, not less...
That's the whole point of delegating tasks and responsibilities to people.
So you want to be able to not only tell one of your underlings to "go here and do this" but you want to also be their eyes and ears while they move on the map, carrying out your orders?
That just seems, wrong....to me anyways. You could literally have your AFK members (we all have) strategically camp parts of the map, going inactive for 2 months at a time, and you should be able to see everything they see, and essentially have a live view of what's going, when you're literally doing nothing to scout the area? How "easy" are we trying to make this for the leaders? Why not just allow them to issue orders for members and the member automatically starts doing it?
Managing your own inventory, or a fief's inventory is extremely painful, but this GUI doesn't address that, as far as I know, and if it does, that part would perfectly acceptable in my eyes. Being able to automatically see what any of your members see is just lame as hell. Sure it make's everyone's job easier, but so does being able to see fief information from 300,000 meters away, but that's lame as fuck too...
You know in single player warband, if you enable cheats, and then ctrl+click anywhere on the map, you automatically teleport there. Sure it makes playing the game much easier, but is that what you really want?