It is funny to armchir quarter back this.
I lived in that area for five years. I was always well equiped in my forays. To this day I carry at least 1 gallon of water in every vehicle, habits are hard to break.
She wanted to enjoy the beauty of one of our national treasures with her son. She figured she had four wheel drive so she could get a little adventure. It cost her her sons life. Don't trivialize that.