DislikedThat's what I meant to say I believe the author was purposefully being hyperbolic to, in a way, mock those complicated system making grandiose claims.
You miss the iron in that the "secret" is only a secret in that, while it has "been out there for a while", it has been lost in the noise of gimmiky tricks and flim-flam .Ignored
I like your wording better. It was more hyperbolic and grandiose which made it more ironic.