I was really upset when I read this.
S. M. Stirling's Draka books are brilliant. I suspect he got p***ed off at the criticism that has been handed to him for writing a dystopian alternate history using the bad guys as MCs. I have heard he started to say that he finds the Draka 'boring' now, and I can understand that it would be difficult (but not impossible) to continue the stories as the Draka are so strong. That's not an excuse for this book...
All of which is me just winding up to say that this book is treason. An entire book, sold under his own name, written by all sorts of people, 75% dedicated to parody of the Draka was unpalatable. I tossed it. I didn't give it to a charity shop or the local hospital, I tossed it. Not something I do with many books.