"drivers must always remember that GPS provide route suggestions. They do not cause drivers to make driving decisions."
So in other words, the GPS manufacture knows their products are defective and their disclaimer that the route is a "suggestion" makes it ok?
The article does not say that the GPS was giving them a bad route; it could very well have led to the couple's house.
The GPS does not know the conditions of the road, just that there is a road.
I wouldn't drive the way my GPS suggested if there were 3 feet of water across the road. Eyeballs come in handy while driving.