[misterprime]

You're misrepresenting the recommendation. You did not include the instructions "link directly to [the footer navigation options] from your header" or "Be sure to also include some form of "Top of the page" link for quick access back to the initial scroll view."

[bodge5000]

Why put a link to the footer in the header which contains links to other pages when you can just put your links directly in the header?

I know the reason why, because it makes the page cluttered, whereas having it at the footer does a better job of hiding it. But isn't that the exact problem that the hamburger menu was made to fix?

[misterprime]

That question is addressed in the article as well: "The biggest headache when coming across these menus on the web is the complete disregard for accessibility."

And by "accessibility" I'm quite certain the author means "usability for people with impairments that don't allow them to use a mouse and keyboard or touch screen".

[PhasmaFelis]

Yes, and this fixes it better than the hamburger menu does. Read the article.