Having these neighbors as a block is a good thing in some sense. At the very least, enemies from the south who wish to spy on the Mountain Domain first have to ask if these local lords are willing to give them passage.
Pushing their way here at great cost is less efficient than changing their target. The war-stricken Continent of Aslante is never short of opportunities for expansion; all that's lacking is strength.
After making a round trip, Hudson roughly conceptualized the vast expanses of swampland that lay in front of his home, most likely covering thousands of square kilometers.
The exact size would only be known after development.
After all, the route Belsden took was not uniform. If one were to estimate the area from the circumference of a single curve, the margin of error would be quite significant.
With this in mind, Hudson's intention of proceeding towards the ocean became more potent.