Enough trolling from my side. Sorry @Asyranok.
Now my feedback about retreat area position Retreat area position have even more sense. Imagine that you are stuck on the top of Anu generator building in the middle of the map (which is common in late game) and surrounded by acid arthrons/chirons. Evac area is few turns away in that starting position. It is a dead trap.
Acid is only thing in game that don’t have countermeasure, only way to save a soldier is to retreat.