Duncan finishing 2nd in 2001 was more compelling imo, especially since the Spurs finished with a better record than the Sixers that year. And AI only shot 42% that season too, the worst % ever for an MVP winner. But he still had a great season and , more importantly, had a pretty poor supporting cast, and still led his team to 56 wins, which heavily factored into the decision. He was also such a fan favorite across the league that there was no way he wasn't going to win it tbh, although Timmy had a legitimate case for it imo.