Who decided what the temperature of normal coffee will be? The fact 700 people out of possibly millions of customers made a mistake that caused them to get burned by coffee they bought means nothing. McDonalds did know that serving coffee at that temperature is what the majority of their customers want, simply because it tasted better. The same thing is done by many other businesses that sell brewed coffee, because they want to sell their product and have customers return. Instead of making people responsible for their silly actions we make rules and laws so people can blame others for their casual mistakes. An adult who is knowledgeable enough to drive a car would by most people be considered smart enough NOT to put hot items encased in a flexible container on a slanted seat between their legs. I seriously doubt if the women knew the coffee was 195 200 degrees Fahrenheit she would have acted any differently. Her actions are proof of her lackadaisical habits.
while more than likely true it was still McDonald job to inform her that it was a lot hotter than a standard cup of coffee.
As for a standard I figure the measurement of the temperature that comes out of your drip pot at home is the one that most people expect coffee to be at.