It transformed the game from being at least reasonably accurate historically to now being a joke.
radar in AH was never "reasonably accurate".
- Range was way too short, RL early warning radar had
much longer ranges than our old 12 and even the new 20 mile
- most ground radar units could give you at least a rough altitude (absolutely vital for AA or vectoring fighters in), we had none and still have none
- radar was blocked by terrain (mountain et al), our never was.
- radar min alt was always also depending on range to target, our was not and still is not.
It was always just a gameplay tool.