What is wrong with the idea that Hans would not be able to see a friendly Wirbelwind 6000 yards away any easier than Thomas could see the hostile Wirbelwind 6000 yards away?
You wanted aircraft out of the GV game? You got it. Now don't be hypocrites and support helping keep GVs out of the aircraft game.
Because icons help make up for some of the missing realism that cant really be modeled. If you're flying over an area of operations for whatever reason (air cover, escort, direct ground support, etc), you are going to know where your friendlies before you see them simply because of radio communications. The ground forces are going to be marking their positions, etc, or the aircraft pilot is going to know close to where the units are before ever being able to see them.
Chalk it up to one of those things that are outside the realm if game play that really cant be dealt with.
Also, the "aircraft out of the ground game" is hardly going to be the result. It is going to be more difficult to spot them, sure. You'll just have to scan the ground with your own eyes and spot the gv before the icon, AND you will have to use markers on the ground for reference points for once you extend out, turn, and head back in for the dive. It isnt the end of the world. Dropping ordnance on gv's has always been far too easy simply because it was far too easy to spot them. Also, I understand the concern about wirbles and ostys having a slightly more advantage now, but in the big picture the success rates are not going to change much.