Either this article misunderstands copyright or I do. My understanding is that you only should change the copyright footer of a website when you change the cont

Either this article misunderstands copyright or I do. My understanding is that you only should change the copyright footer of a website when you change the content and therefore have created a new copyrightable artefact. Similarly, Starbucks only need to update the date on their cup if they have updated the design of a new cup.