I am fairly sure geography of DS2 not making sense is purposeful design choice, and pretty cool one in my opinion.
The problem with open world design is that for some time that is synonym with big, flat, empty. Gothic 2 is over 20 years old and still has the best designed open world I have experienced. Very small, you can walk across entire map in 10 minutes, but so dense and 3 dimensional. Full of ravines, valleys, hills, caves, ridges, and every place had something in it, some little thing for player to discover. Beautiful.