I don't think "creativity" always gets upvotes. I think people generally will upvote things that they find funny, or things that make a statement they agree with (politics, religion, entertainment tastes etc). That's not always the same as "creative." Sometimes creativity can help, but not always. Sometimes too much creativity might even be a detriment (vote-wise, anyway).
I think he maybe phrased his point in an extreme way. I don't think what you said was "absolute and utter bupkiss" at all. But I do think he's right to point out that creativity and upvotes don't always necessarily go hand in hand.
I don't think it's a big drama. He's maybe just coming at it from a different angle, if that helps. :)