Why did Woo lose Survivor?

Why did WOO lose Survivor, despite his strong physical prowess and strategic gameplay? Was it a lack of social skills or an inability to form strong alliances? Did he make a crucial misstep at the final tribal council, or did the jury simply have a personal bias against him? Did his perceived 'nice guy' persona hinder his ability to be taken seriously as a competitor? As a fan of the show, I'm left wondering what factors ultimately led to Woo's elimination and if he could have done anything differently to secure the victory.