Yes, the real rule here is 'breaking the rules for a landing page. The author hasn't noted that his site is a one page site. I suspect that when he adds any ext

Yes, the real rule here is 'breaking the rules for a landing page. The author hasn't noted that his site is a one page site. I suspect that when he adds any extra pages the logo will appear back at the top again. Actually, I'd argue that a number of designers know that landing pages are not standard site pages. I certainly always design a content page to figure out the general structure and expect landing pages—particularly the home page—to potentially break these rules as their goals are different (by the time you end up on a content page, you are usually looking for specific information).