
The answer is
"SEO has never dead and it never will"
The instant search approach has if anything refined SEO to some extent. Instant search is an upgrade from the original queue of common search results, which is called “Suggest”. The only difference is that it’s a bit faster, in fact so fast on its own preferred searches that I’ve had to blink to see it’s already searched it a few times. This is where SEO comes in.
After all, search engine are search engines. They have to work on some sort of priority basis, and SEO is inseparable from that process. So page rankings for business are still extremely important. The search queues are just good quick searches, no more, no less.