This looks like a thinly veiled extortion attempt by Ms Holdforth,
With the CEO previously stating that the decision was made to shut down the airline on the morning that it happened, and taking the responsibility for that decision solely upon himself, then this book has the potential to completely contradict previous statements made public by SNR management.
It also has the capability to show a level of contempt that management has for staff (depending on the content of this book).
I am pretty sure that the author may realise these implications IMHO.
I want to see all the sordid details out there for everyone else to see, but unfortunately rarely is there ever any justice in the corporate world.