I get the frustration with tips for things that are low-touch. When you go to a place that doesn't have waiter service, or you get a prepared item to go and the cashier who you interacted with for 5 seconds turns around tablet that asks for a tip, I'm annoyed -- but this is a place that lets you order an customized cocktail, and have a waiter bring food to your seat. If you think the food is overpriced, don't order it.