What is the author's point? Seems to be that belief in God provides hope in the face of such horror. But this is irrelevant to the objection raised by the problem of evil - that such horror is surely extremely good evidence against the existence of such a God.
It's like saying: "But believing in Santa provides these starving orphan children with hope" after those children realize that there's overwhelming evidence there's no Santa. How does that deal with the evidence?
But I may have misunderstood.