Yes, really. The way breathalyzers measure blood alcohol content is by measuring the amount that is expelled by the lungs (i.e. it evaporates from the blood along with CO2 and other dissolved gasses) and extrapolating.
For good coffee, the minimum temperature while brewing is supposed to be about 200°F, which is certainly hot enough to cause third degree burns after a couple of seconds of exposure. It is simply common sense that coffee can cause burns.
To blame a company for making coffee hot enough to cause burns would be like blaming a stove manufacturer for making a device that could cause burns.