This is optimization for SEO. Google is the top search engine, and they have really changed their algorithms throughout the years. These days, SEO likes the content that your audience likes. At the end of the day, you are writing content for people so that search can also understand it. Not the other way around. Google has really been penalizing content that is overly SEO optimized as it is seen as spammy and unhelpful to a human audience. So optimize for SEO, but don’t overdo it please.