Halperin and Heilemann

How come we accept a book like Game Change as gospel truth even though it is built upon anonymous sources as told to by second-hand anonymous sources about people the authors carefully refuse to say whether or not they even spoke to themselves, and we're okay to use such a book to set our sights on whichever public officials we choose to hope to destroy; yet when someone like James Frye writes a memoir that turns out to not be 100% true we have a collective meltdown and as country have to lay on the couch for Oprah to stroke our heads and whisper in our ears that everything's gonna be alright? What the fuck?