Only a few people participated in this one - not surprising given only a fraction of readers ever participates and from those not everybody would have changed his taste.
I found the results interesting. A lot more movement in red wine preferences than in whites and a big move away from Shiraz. The resurgence of Cabernet is minor, Grenache does not pick up a lot. Lighter wine styles do much better. Pinot Noir benefits, and the mediterranean varieties, mainly Tempranillo and Sangiovese I suspect, are the big winners.
What I would like to know: Did the wine writers, many of whom propagate this move, influence the consumers or did they follow consumers' preferences?