Greetings,
Edward_Dearing I'd have to agree with many here in saying that you should send a suitable response to NiC.
If nothing else, it will alert the publishers to the fact that the review is likely to mislead their readers and, thusly, affect their own and their journal's reputation, as both
Fernando Semprun and
Smyslov_Fan intimate.
Even if they don't publish your response
per se, they may feel that they should redress the balance themselves with a suitable "Editorial".
As for the content of your response...
I'd agree with
MNb and others that it should address the specific points objectively without rancour.
As you've already done in the opening and closing paragraphs of your main post here, acknowledge the honour of having someone of his stature reviewing your book, etc,...
As mentioned by many here, I think that the issue surrounding people's idea of a "repertoire book" certainly plays a role here in the tangential nature of his review.
However, I think it might be better to muse whether Tiviakov appreciated the
market for which this book is intended - which includes both the "repertoire" concept and the playing-strength of its intended audience.
Also, merely pointing out that you "explicitly stated" that this or that line was bad for Black several times throughout the book, is not enough.
You need to include the actual quotes - with page numbers - so that anyone who has the book already (or goes to a bookshop) can open it and see, clearly marked in black-and-white, those exact quotes on the exact pages where you said they were.
There is nothing like being told where to find an answer - and finding it where you've been told to look - to press a point home to a reader.
Again, make clear the dates that your book went to press and was finally published in relation to the date of the Chinese Dragon game - which will clearly indicate to anyone why this game was not referenced.
I have to say that my own SCID database (with some 380,000 games) favours ..., Nbd7 (White wins 46.1% with 46% drawn) over ..., Nc6 (White wins 55.4% with 14% drawn). On that basis, ..., Nbd7 appears "safer" - although this doesn't take into account later mishandling of the resultant positions by both sides. I'm not sure how the current databases stand now or, perhaps more importantly, at the time the book was published!?
As for his criticism of your conclusions regarding certain lines, that would be a nice opportunity to indicate that both yourself and the readers of NiC, particularly "Dragon fans", would welcome his thoughts on those lines.
If he chooses not to enlighten anyone, they can draw their own conclusions.
Please note that none of the above is intended as baiting him to respond - you are merely clarifying what appears to be a misunderstanding of the book's intended market.
I confess I don't have your book ... as a "Dragon fan", I'd welcome a copy

... but I think from what many others have said, including JW on TWIC, that it can't be as "useless" as Tiviakov makes out. (I can only surmise that his questioning of your character and motives are due to his misunderstanding the book's intended market audience.)
As I said earlier, the publishers of NiC might feel compelled to redress the balance - whether directly or by publishing your response with or without an accompanying editorial.
Frendo Agreed - what if it were changed to "Concerning Tiviakov's Review of Dearing's Play the Sicilian Dragon in NiC YB75" !?
Kindest regards,
James