Ben I'm not sure what you're driving at with your response unfortunately (I can be very slow on the uptake though so it's probably me!) As I understand it, if I want to run away from interdiction, I don't need to look at the UI or the Maps, I just pick a direction and run like hell, or very quickly select any system in range and hit hyperspace. But as I said I'm probably misunderstanding your concern.
Lazy Murph - well, my idea is that you run the Discovery Scanner which, as I understand it, populates the system map with bodies in range. Then what annoys me with the current setup, is that you have to look at the system map, do a calculation based on the Semi-Major Axis of an interesting-looking body on the map in AU multiply it by 480 to get the ls range, then hope that the body is at it's widest orbit point (it frequently isn't) so that the body you target from the Navigation UI is the right one, then fly there and with luck it's where you were aiming for.
Add to that the fact that you can't get out of the system map with a single keypress like you can with the galaxy map, and it can (and frequently does, to me) become an exercise in frustration.
To have to Explore the things prior to targeting them - assuming you mean performing a Surface Scan - would render my suggestion largely useless as by that point you already know what everything in the system is, which makes the system map pretty but no better than the Navigation UI.
But bear in mind, I'm making assumptions based on what I've read, so I'm quite possibly wrong!
Definitely appreciate that I'm not alone in my desire for this feature - thanks guys!
Steve