Why should they get rid of GV icons? Makes no sense while we have airplane icons.
If our cartoon pilots can tell the see and identify a Me-109 or Spit at 6,000 or even 3,000 yards, then WTF would keep them from being able to see and identify a huge tank at 1,500 yards?
For the argument of consistency, you're correct. The "eyes" of the virtual pilot should be able to identify tanks as easily from 1500 yards as they do an aircraft at 3,000 yards. But from a gameplay standpoint, I believe you're missing the point. In terms of air cons, icons serve to identify, as knowing the plane type you are up against is THE difference in the fight.
In most cases, you would be aware of their presence even without the icon. The dot is unmistakeable. Planes do not rely on stealth, they rely on tactics.
GV's, though, do rely on stealth. A huge part of GV'ing is knowing how to take advantage of the terrain to conceal your movements. When dealing with gv's, icons are not useful at all in determining type. Does my attack strategy differ that much if I am inbound to drop bombs on a T-34 as opposed to a Panzer? Maybe it should, I'm not good enough at Jabo to know, but I really don't think it does. The unfortunate purpose icons do serve is to completely eliminate any hope of concealed movement for the tanker.
Seems to me that this is clearly something that needs to be addressed. Enemy GV icons are already turned off if you are in a GV. Why should a fighter pilot (whose eyes are presumably less trained for ground vehicle recognition) get the benefit of a can't miss flashing red shoot me target while flying by at 300mph when an experienced Tiger crew has to look through ground clutter and trees, hills and shrubs to get target recognition?