I don't normally post reviews, but after finishing this excellent book, and having read the review by Steve Gardiner, I failed to see any anti-gay message in the book, despite consciously looking for one. The only scene which the reviewer could have been referring to is one in which a female attempts to seduce the main character Lanik (who she thinks is also female), but Lanik is forced to decline due to plot-related reasons, and nothing to do with any kind of "anti-gay" reasoning. Further, I have read the majority of OSC's books and have not noticed any anti-gay message whatsoever.
In short: this book was a thoroughly enjoyable read, and reconfirmed my admiration for OSC, who I believe to be one of the top writers of his genre. Any anti-gay message belongs solely in the imagination of the aforementioned reviewer.