Nietzsche was anything but a nihilist. Nihilism was Nietzsche’s greatest fear and his entire body of philosophy was written to combat it. When he wrote that God Is Dead that is just exactly what he was talking about: Europe sliding into a morass of nihilism due to a loss of faith. If the author had tried reading him instead of cursing him she’d have found that he buttressed her argument.
If nihilism was Nietzsche’s fear it was only because like Comte de Sponville, he feared its spread into the souls of millions. That said, Nietzsche’s philosophy cannot be understood apart from his monstrous jealousy of Jesus Christ together with his self-pity and longing for godlike powers. After his encounters with the disincarnate being that called itself Zarathustra, Nietzsche’s declaration of the death of the Christian God was an ecstatic utterance solidified in his description of himself as anti-Christ.