By Jon Wertheim After being heckled by a fan at Indian Wells, it seems fair and reasonable to ask whether the women’s tennis star could use more time away to find answers for herself. Let’s start with a story. It takes place in Indian Wells, Calif., at the BNP Paribas Open. Naomi Osaka was on one side of the net. A heckler was in the stands, letting her have it. And Osaka was visibly upset. This story doesn’t take place this past Saturday night—we’ll get to that in a moment—but rather four years ago. Osaka was facing Sachia Vickery in an early-round match. Vickery—a young American inspired by …