Exum has completely dominated his competition in Australia as well as dominating when he played against the American prospects, and his draft stock doesn't rely on leadership being a selling point like Ennis. And Oklahoma State's collapse also proved how valuable Smart was when he returned and made them a dangerous team again.
This is also from Chad Ford's chat today: "But with PGs, teams want to see your leadership abilities. Being a winner, rightly or wrongly, helps."
Also, you're focusing on one tiny part of the argument instead of trying to provide any reason that Ennis would be considered a better prospect than Burke was.
Personally, I understand why he would be considered a potential lottery pick this year even if I don't necessarily agree with that assessment. But this board isn't the only place that doesn't understand his hype as a top 10 prospect like Ford thinks.