Using the binocs to to fly a plane over a known hardpoint or a large spotted force of enemy troops is real to ww2 - You can't really stop it, can you? Unless you shoot them down like the C47s in PDH OR and this is a little cake specific to FH2, not real WW2, you find the bastard guiding them and snipe em before he finds his target and releases the bombs... kinda like finding the commander and killing em
So it amounts to the same as commander arty, but way cooler: You can A, kill the guy, or B, kill the commander asset, here the planes
Now, there is also the fly-able planes I spoke of that float in the air until spawned in. You can fly em around, strafe ground targets. Depending on the plane, drop bombs - But you don't get refills.
I really don't think this is half bad an idea, as you say, natty