That solution keeps glossing over the fact that this world is one that has been lived in for awhile. How does one square the Count being sequestered into a hamlet without any of the resources to perform his duties as count? I get trying to prioritize Players and backers but that leads to things that just don't make any sense.
If the idea is to just automagically boost the NPC Counts settlement to a Town+ settlement, then what you are functionally asking SBS to do is force 2 towns per county almost across the board.