Don't see what the big deal is. Have a couple of maps realistic, and have others be just for fun. The air combat is what matters. Nothing real or unreal about terrain unless the fighting happens on it, e.g. the GV spawns 5 kft higher on a steep incline in Trinity.. A8 I think the base is.
Planes don't care about terrain, they're in the air. Oversized canyons are fun. For the same reason canyons in reality are more fun than creek beds.
The only thing I do really agree with is when you've got obvious mathematical patterns repeating.. Perfect primitive shapes that look like something out of a crop circle. It doesn't look all that great, most of the time.