Thought it might be good to have a place to keep up to date with author blogs. On the other hand, I am biased...
I've always wondered how much outside influence/pressure goes into the naming of some of these books. I had assumed you chose LoTD as the title due to the simple, yet significant, threefold meaning of it (which you mentioned). But to cite another example, when I was reading Peter Fehervari's excellent Fire Caste, I kept thinking that there was no way that that was the original intended title (further disservice was done to that book by it being marketed as a Tau novel, when in fact it was a cerebral Imperial Guard outing).1.) Titles, ah titles. Fist thing to know about titles is that the author is not the only one with a hand in the titles. Authors can't actually call books whatever they want and there are other interested parties who push for one thing or another.
I think the people that feel misled or shortchanged by the title/cover lose sight of the essence of the Legion. Yes, a Fire Hawks/Legion "then and now" book would be great, but how can you flesh out a story around them as they are now to satisfy a chronicle of the Certus Minor/Cholercaust event? Let's face it; the Legion looks damn cool, but they make for piss-poor protagonists...After all, the Legion of the Damned can't really turn up at the beginning of the story. That's not the way they work as a phenomenon.