Except that it does mean everything, it had the biggest NH moment in that vol too, not just the cover which alone is more than enough to make the NH fans to buy the damn volume, yet it sells as much. What do you think people will be thinking of when they see that volume? NH.
So what? It also had the ten tails, NEJI's DEATH, giant dbz battles with Ninja. We've seen the reviews for the movie NH is not that popular in Japan. Don't jump to conclusions just so you can start an argument.