SEO strategies are a powerful way to improve your traffic but you have to always cope with the regular Google algorithm updates. Also, it will take at least a few months to get rewards from your search engine optimization techniques. So, relying only on SEO strategies may have a risk of losing potential customers and website traffic.
If you have diversifying website traffic sources then regular Google algorithm updates can not affect your website engagement metrics. This is the reason why marketers concentrate on tips and trends to engage users without SEO traffic.