Earlier quoted context omitted.
This is another problem of the entire SEO industry. Websites trust these SEO consultants and growth hackers more than they trust information from Google itself. Somehow, it becomes widely accepted that the best information on Google ranking is from those third parties but not Google.
I'm not sure it is so cut and dried. Who is more likely to give you accurate information on how to game Google's ranking: Google themselves, or an SEO firm. I suspect that Google has far less incentive to provide good information on this than an SEO firm would.
The more Google helps you get ahead, the more you end up dominating the search results. The more you dominate the results, the more people will start thinking to come straight to you. The more people come straight to you, the more people never use Google. The less people use Google, the less revenue Google generates.