Oh.
Yeah, now that you mention it I see it as well...
Well thanks a lot, you have just ruined this mod for me! Now I have to go use HIP and SWMH again.
Edit: Just kidding

But yeah, I actually agree the base map geography could be improved. But alas it's just so much work to create a new map from scratch, or even port one (and SWMH is HIP exclusive).
Maybe at some point something will happen that allows us to switch to a better one, but I'm afraid atm our priority is gameplay instead.