Haters need to look closely at the add again. The bottles are not "opened" by the action of placing two caps together and twisting. What appears to happen is

Haters need to look closely at the add again. The bottles are not "opened" by the action of placing two caps together and twisting. What appears to happen is that a spinning cap placed over the normal cap can be forced to jam against the bottle drip ring by being pushed against a similar cap. Twisting that, breaks the spinner and allows it to be removed. So the drinker can now access the real cap underneath. Still a dumb idea though!