It's pretty obvious that Apple marketers have never worked in a restaurant kitchen. During the lunch or dinner rush, the kitchen becomes a steamy mess with bits of food, flour, sauces and hot oil splashing on everything. Pots, pans, utensils and dishes regularly get knocked over and crash to the ground. Who would bring an iPad into the kitchen? No self-respecting chef.
Side dish: If you're a professional line cook who needs to look up pretty pictures of food orders while you're creating them, or if you're a waiter who doesn't know the menu and needs to match the picture with the dish to pick up, then you probably need to find another line of work.