Maybe because it's not decaffeinated. According to this Consumer Report, there is no legal definition of decaffeinated. Like your weight, it is what you claim is. Nice! So while the average caffeinated coffee contains 100 milligrams of caffeine, you'd expect decaffeinated to contain: 0? 1? 5? Check out these brews:
Starbucks: 21 mg
Seattle's Best: 29 mg
Dunkin' Donuts: 32 mg (yee haw! have a sugar-free donut with that)
McDonald's: 5 mg
Consumer Reports found caffeinated coffee at these chains to contain anywhere from 58 to 281 mg, so with those apples, 32 mg could well be considered decaffeinated.