The in-universe explanation is that they probably don't sneak around in deserts in bright daylight and without any cover or maybe they hide behind dunes. Again, just because you can do it within the confines of the game doesn't mean that it's automatically possible within the in-universe lore framework.
I don't understand your point. I already said that they're absurd. Just because they exist in Classic doesn't mean they're above criticism.![]()