I can see this helping some decide if they want to oppose a strat or HQ raid. Three bars would be rather cluttering visually. It might need three colors of dashes or ticks. The more likely unintended consequence is it will influence the timid to jump to the safer large numbers side in a fight when the country they are in can only take undefended bases. How this will work during low numbers will not be how this will work during peak play time.
If you do searches on Hitech from 2000 forward, he has a constant theme of not introducing the ability to help players choose to imbalance the game, willfully or innocently. You can look at the roster to see country numbers at a glance and from experience know reasonably what the darbars mean if the fight is inconvenient from your nearest fields.
In AH3 if a plane is in your radar you will now get a mini fighter or mini bomber instead of a dot. You will also see a mini GV icon for GV's from your side. You also can get the DT command as a menu dropdown for any field by right clicking on it's icon.
Just wait, some day our game may "wished" into how well you arrange your ACM action cards and stack them into the delivery queue for your fighter's AI to fight for you. There will be a macro recorder you run while in fights to create your maneuvering cards. The krupinski tumble would be all you see in the arenas for ACM along with the skyyr HO money shot as everyone's gunnery action card......