True, the post itself is actually not bad. Just the content itself. Note: The post was about traffic, not SEO!!!.
Seriously, it's 2017 and if you are just talking about Google when it comes to traffic you sort of missed the developments of the past 5 years Sure, people still google a lot. The question is just - which part of that traffic is actually open to you as a guy with a website that isn't wikipedia, reddit, yahoo, amazon or pornhub. And if you compare that to the traffic that is open to you via new, not as saturated channels (flipboard, pinterest, etc), you might notice, that these channels are actually offering the better bang for your buck (by a factor of 10).
also, from a more scientific point of view, it's a bit questionable when you draw all your conclusions from one specific niche - especially one like SEO, where all search queries are done by super targeted business users (as opposed to your average consumer who might eventually feel like getting that tight sweater if you ask him pretty please).