Google Suggests That The Average Googler Isn't Interested In SEO

How can anyone not be interested in SEO or how Google search ranks pages? Especially, how can someone working at Google, a company that ranks web pages for a living, not be interested in how it works. But John Mueller from Google said on Twitter "You're over-estimating the interest of average Googlers in SEO :-). There's a lot that needs to be done at a company like Google."