Notice how all these stranded stories start off with a truck or SUV. People need to stop over-estimating their vehicles' capability.
It's not overestimating, just their vehicle is more capable so it went in further. There's a saying in offroading, the more capable you are, the deeper and further out you are stuck. Of course if they had a shovel they could've probably gotten out without problem.
They are extremely lucky to stumble upon a cabin with fuel, food and a radio.