It's been about 15 years since I've been to White County (I used to work for a surveyor who worked a lot in Arkansas), but it's your typical rural southern county. Even post September 11th, post Katrina, most local governments are still behind the ball on dealing with something like this.
Also, the .fedgov isn't the best either. I don't know if the rest of the train had power (I assume so), so shuttling the passengers to the adjacent cars would have kept them out of the cold.
While not good, it could have been much worse, like that one a few years back in Alabama.