No way! He was coming off an achilles injury and put up good advanced stats last year, including on defense. In the finals he struggled because he was coming off a pretty big injury that everyone expected to keep him out for the year and his fitness wasn't very good. If he can get healthy I'd expect him to be even better another year removed from the achilles injury.
I don't think his offensive game is outmoded at all either. He can handle the ball, pass and shoot threes. I agree with you that he's not a star anymore but he's definitely a good player still.