I think the issue with that, and why the Zach Cy Young joke is as long lived as it has been, is that Doug didn't say potential. He either guaranteed, or said to bet on it, or some other really, really confident statement.
Is the joke kind of old? Maybe. But if Zach did go on to win a Cy Young in Toronto, I am sure that Doug would've been heralded as this board's Joe Willie.
But the mob mentality is a definite issue at times. No doubt.