It has been a long time since when SEO is being speculated to be dead, which is far from reality. It is just that things have changed since Google come forward with stringent search guidelines.
With evolving technology, there is change in the way people communicate, purchase, and interact online and SEO has been greatly influenced by this!
What has changed in SEO is that low quality/compromised work is getting penalized and only top quality efforts get rewards.
When done right, there couldn’t be anything better than SEO for businesses!