The answer, in my opinion, is "yes" and "no". It may be somewhat helpful for some yet harmful for others.
It could be harmful to those who are susceptible to becoming addicted to alcohol. If they drink too much they could get certain types of cancer or liver disease. Or they might be prone to automobile/workplace accidents.
How about if someone eats a really good diet? Will wine be helpful? In my opinion the answer is "no" because one will already have more than enough antioxidants in their system from eating lots of fresh fruit, leafy greens, vegetables, nuts, seeds and berries.
The only time I see wine drinking as being helpful is when someone eats a diet high in animal fat and starches, while at the same time consuming little in the way of antioxidants. With this diet they could very likely be developing cardiovascular disease. If this is the case, then wine will keep their blood thin and better able to keep moving through narrowed arteries.
With this opinion, I'm sure there might be some who would like to send me off to Deolali.