If the cover would apply to your drinks, that would be fine. Seeing Fantasmic from the River Belle Terrace is awesome, which you can do for the price of a meal that they are in the business of selling. If they were to charge you to sit there and eat your meal just because there's a fantastic sweet spot view of a nearby show, that would be mercenary.
Seeing that the view from the Cove Bar would be far from the sweet spot for WoC, I think charging $10 is pretty lame, unless they let me bring my own alcohol and drink it on their premises.
