It is absolutely not propaganda.
I live in a rural village about 5 hours' drive from NYC. There is no public transport here.
If I drive 45 minutes to the nearest city, I can catch a train—but that train will only take me to a few destinations (primarily Albany, NYC, or Boston one way, or Buffalo, Chicago and points west the other way).
Some cities (outside of major metropolitan areas, which do generally have some kind of rail system) have intracity buses, but they tend to be underfunded and dirty.