That's stupid. Anime has morals and lessons in it so how is that bad? Naruto is bad because it has a message in it saying to never give up and work hard to achieve your dreams and goals? I think not.
Now granted. It's rating is 8-12. But adults don't pay attention. If it says 8-12+ then they gonna say, "this is good for my 5 y/o child."
FYI I'm 13 and 10 months