I've yet to see any news piece on Comey, whether or not the context involved his book, since the firing not mention the firing, and, since the appointment of Mueller, also mention that the firing is widely perceived as instrumental in leasing to the Special Counsel being appointed.

The idea that the coverage of the book never mentions the firing is laughable.

Every bit of coverage I've heard about Comey--both from the last 24 hours about the book, and for the last year--has mentioned Comey being fired every time.