Well, the novel was published. You got one copy there.
Well, it was
self-published. A huge difference, the misunderstanding/miscommunication of which leads to lots of people chasing this particularly smelly red herring.
If all the excellent fan fiction on this site and others was printed out and bound with the equally excellent covers designed for them and given to 4 readers, these would all be of the same level of interest as The Killing Zone.
In fact, anyone who does this now, will guarantee that in 20 years' time, Bond scholars will be discussing their work as we now discuss Hatfield's.
It is no doubt interesting and I enjoyed the attempt when I first read it. But it was obvious for what it was. I doubt Puttnam would have allowed such a book to get very far in the US without commencing a breach of copyright action on behalf of Glidrose. But TKZ was no more interesting or valid or "genuine" than the aforementioned other fan fiction.
So, if we say that
all fan fiction is worthy of such attention (and if it is as good as Jim's, it is!), then TKZ has merit. But we must be careful to distinguish it from "official" which the term "lost Bond novel" implies.
Ultimately, I guess, it is up to the individual to decide what is worthy of their much sought after attention in the incredible world of 007...