What is the worst thing about Naruto?

In your opinion, what is the worst thing about Naruto?

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For me, it'd have to be the gross overuse of saving / 'redeeming' villains. I just got finished watching Naruto's The Last and it was pretty obnoxious how the person who kidnapped and mutilated a child, brainwashed Hinata, almost murdered Naruto, and tried to commit omnicide on the entire planet basically got off after no character development and two minutes of exposition. Hell, Naruto was in a scenario where even Nolan's Batman wouldn't have saved Tonei.