A very rude reply that wasn't called for. Must've been a bad day.
It's not "just him", and from any developed country's point of view, very few places in the US can be considered "less rural". There are only ten cities in the USA with the population of more than one million.
And my question is not what that particular person can do to reach his destination, but whether Southwest could expand its network by flying smaller planes to "somewhere more rural".