No, "Here's a double blind randomized control trial proving this improves metric X across a wide range of people, places, and situations." Instead they use vague jargon, anecdotes, metaphors, their own and other's authority along with a good heap of fear, uncertainty, and doubt. The hard part's that disproving their claims takes real effort. Effort they're not going to put in here. They just want you to use their product, pay for their courses, read their ad infested blog, or just do things their way because that's the way they like it.