One of the best reasons to have the Icons on is this. How many players can actually ID an aircraft from the silhoutte?
Then the follow up reason is this. How many players are using larger inch screens to see larger graphic airplanes at the same range as opposed other players with smaller screens?
If a player spent the money on a 56 inch screen in front of them, then they would be able to see the silhoutte quicker at 2K then the player with the laptop at 2K. Not to mention players with triple screen capability. This reduces they're need to hit a key to change the view when glancing with their eyes left and right will be quicker.
From a tech point of view. Players with better graphic, video card, cpu, monitors, and internet connection speeds do have a slight advantage over players with basic computer systems. The latter group of players will have to play with lower frame rates in the teens and not accurate visual graphics. Just play the game on a laptop for 400 dollars with a Wi-fi connection to see.
Leave icons on and range on.