Design is not just what it looks like and feels like. Design is how it works.
Everybody would agree that the presentation layer manages and makes possible any expected interaction between the user and the system. Much like in a restaurant where a waiter gets and forwards orders to the kitchen staff, the presentation layer picks and dispatches commands to the nearest interfacing layer in charge of processing the command. Just as the waiter at some point serves the ordered dish to the eagerly waiting client, the presentation layer is slated to show at some point any calculated response to the user.
It sounds like the classic chicken vs. egg debate, but it is probably worth raising the question once ...