Out of the Wild Bogus Ending

I am a fan of reality TV shows and I have been watching Out of the Wild on the Discovery Channel. http://dsc.discovery.com/tv/out-of-the-wild/out-of-the-wild.html
The last show had the remaining volunteers of the experiment finally finding civilization after spending about a month in the wilderness.
Here's the bogus part: They finally found some cabins and an active train track and it was some sort a surprise.
I lived in Wisconsin Rapids and at 3:30 every @#$%# in the fricking morning, you could hear the #$%%# train whistle from the time the train entered Port Edwards from the south until it left Wisconsin Rapids to the northeast. As the crow flies, that's about 10 miles or so. Of course, the distance depended on the weather and wind direction. Every morning, I counted the train whistles- it averaged about 25 times each run.
So, for the volunteers to be surprised to see the train and not hear the train whistle until they found the small amount of cabins whistle is completely bogus. Their weather was snowing at times, but no wind. What a disappointing ending to a pretty good show and it makes you wonder what else was staged or bogus.