A book promotion campaign is only as good as an author's willingness to say "yes" to interview (and book) requests. I'm working with an author who knows this, and yet is overwhelmed by other demands on his or her time. (Name and gender withheld to protect the guilty!) Thus, this book publicist is hearing "no" a lot more than she's accustomed to hearing it from authors.
And, wouldn't you know, this is a book that would publicize itself if the author would cooperate. Grrr. Soooo frustrating for this book publicist! But, perhaps, the author will decide that building brand by getting media visibility is worth the price of putting some time into this book promotion campaign. Could happen. Maybe.