They had no choice. They couldn't very well have a franchise with international box office receipts of almost $4 billion (and counting), and have an attraction with the very same name, and not have the attraction give a nod to the movies. Could you imagine the Dumbo ride featuring flying elephants that look like plain ol' elephants, or Peter Pan featuring animatronic figures of Mary Martin instead of the cartoon PP? While the "older" generation of Disney fans will always think about the classic attraction first and the movies second, the new generations of Disney fans will always think about these in reverse.