[Illniyar]

SEO isn't just about landing pages or corporate websites. Every public facing route is part of SEO.

Some of the most SEO heavy websites are social networks, ecommerce sites, marketplaces and other interactive websites.

Even for corporate websites though, why should we degrade the user experience for SEO if we can easily have both?

And yes whether you agree or not (and by your comment I think you don't) the vast majority of users and UI/UX designers consider SPA to be a much better user experience than loading pages.

If you are making websites for a living, I suggest you come aboard the SPA train quickly or risk losing north of 90% of job opportunities.