No, thats just the real world dude. It’s the same math that a locally owned coffee shop has to use.

Technically you got the coffee you paid for. You got the same amount of coffee as you would have if you got normal ice. It’s priced based on the amount of coffee provided not the size of the cup. The cup being not full is more psychological than anything. If we want to get real technical, the price of a coffee is mostly labor and overhead not the ingredients. Thats why a large doesn’t cost that much more than a medium.