That says if 2 or more bases are close to each other, the army in question suffers a few penalties? Well, Petrosian has 2 bases that are pretty darn close to each other (close to an ally too), shouldn't he suffer said penalties.?
I got a PM from Water Dumple saying it was okay if I put it on the other side of the same area. It actually isn't, but if you look, it's even more far than that, since I have to walk around a few walls and the river. Granted, planes could fly over there, but my army isn't 90% planes.
Edit: Even if I DID hop down the ledge, it's about as far (a bit farther) than if I went from the blue 20 to the landing place. This, however, was done with my school ruler. I urge everyone to try this out first.