No, McDonald's was sued successfully because they consistently heated their coffee 20 degrees higher than other restaurants (to 185 degrees), after being warned repeatedly by the courts to keep it at a cooler temperature after over 700 incidents had been brought to court. This wasn't "ow, that was hot" -- the coffee caused burns so severe the woman was in hospitalized for a week with third-degree burns on her thighs, buttocks, and groin that required skin grafts, which was similar to what other patients experienced. Also, the woman only sued because the restaurant refused to compensate the resulting huge medical bill which, still working to support herself at 81 years old, she couldn't afford.
There is more information, along with analysis of how the business community encouraged the false "coffee is hot, duh" concept, here: Facts About The McDonald's Coffee Lawsuit. You can also find the same information elsewhere on the web; I first read about it in a textbook when studying business law in college twelve years ago.
Don't know about you, but when I spill a hot drink, I expect it to hurt and turn a little red; I don't quite expect I'll need skin grafts and a long hospital stay. ;)