that's not necessarily true tooshy.
10 years ago people were writing their webpages for PEOPLE, not for search engines. because SEO wasn't a mainstream thing. and they got outranked. it just so happens that in this period of technology Google believes webpages need to be written for the people, but it's all about what Google deems "quality" SEO standards. As SEO standards have changed since the beginning of it's existence, they will change again. In what way? Who's to say...
But they definitely will change, and writing for people will not be what it's all about folks.