I have to say, I like the classification. And I'm flattered by the complimentary comparison to Ursula Le Guin's novel. (Who wouldn't be?)
Here are some of the other nice things they said:
"Alvar's Spear is archetypal science fiction: wildly imaginative, thought-provoking, and thematically profound."
"The story is undoubtedly a powerful read. Ideas explored include prejudice, acceptance and unity, but ultimately, the questions asked are deeply spiritual in nature."
"This is a solid science fiction offering. The philosophical undertone (quotes from Nietzsche, Cicero, Sun Tzu, Sitting Bull, Malcolm X, Sartre, etc. serve as chapter headers) adds a deeply contemplative layer to the narrative tapestry."