True. It's glasses 3-12 that get you into trouble.
But I'm skeptical of the wine study. I think the study was biased at least two ways.
1) Higher socioeconomic bracket people (which correlate to healthier people) tend to drink wine.
2) People who demonstrate consistent moderation (by drinking only 1-2 glasses per day, but every day) are probably more consistent and moderate with their other eating (and exercise) habits.
A glass of Pinot Noir provides about 640 mcg of resveratrol. The amount used in animals to prevent cancer exceeds 500 mg per human adult, which equates, proportionally to 2 1/2 bottles of wine.
pinot noir is considered a finicky grape to grow, in part because it is susceptible to rot, which may be the reason it produces more resveratrol than other grapes--up to 40 times as much resveratrol as grapes such as merlot and cabernet sauvignon.