I agree, yet I also know of some podcasts and books that give the same generic advice. All of these can be valuable for learning — I learned a ton from Reddit, YouTube and other media.
I also agree that sometimes it can be too specific to the nature of the business, yet folks like Rob Walling can incredibly easily talk about how to structure emails that go out to potential customers, how to potentially price a SaaS based on different aspects, etc. Also, in one of his conference talks, Jason Cohen goes in depth on how to pick a good market with a recurring problem, instead of just saying “pick a good market”. In “The Mom Test”, Rob Fitzpatrick goes over a handful of potential conversations, and does not just say “talk to prospects”.