I've been seeing this for a week or two as well. Was this up in Alaska?
If it's anything like here, there are a number of seasonal ice roads and winter roads (though granted, I'm living where the first season of Ice Road Truckers was filmed). Just to give you an idea, right now everything is frozen way thicker than needed for passenger vehicles, though I don't know if they've opened for tractor trailers yet. The ice needs to be at least 70 cm thick for them, but they usually reach that around 30 January so it should be good any time now. Still, you always have to check the conditions before heading out on the ice.
If this was up in Alaska, I could believe if this was a map reading fail that lead them near a hot springs. Normally they wouldn't have much to worry about, but a nearby hot spring would really keep the ice thin. It's a combination of poor planning and bad luck, but they still should have been able to avoid this.
If it was someone way down south doing this, then it sounds like they were being dumb. If they would have stopped to poke a hole in the ice and check, they'd have seen that it's way too thin...