Starbucks coffee is not served anywhere near that hot. By their corporate guidance, the normal acceptable range of temperature for coffee served to customers is 145-165F. If you poured that in your lap, it would be very unlikely for you to receive third degree burns. The burn risk of water goes up very rapidly as temperature is increased above that. This is the entire point of the court case -- nearly everyone else in the country served coffee ~30-40F cooler than Mac, due to having found the risks too great, yet even after hundreds of complaints, MacDonalds decided to keep their temperature higher.