The article doesn't seem to highlight that English wine and British wine, are entirely different beverages according to the law.

British wine cannot be sold or market as actual proper wine because it's not real wine. It's just an alcoholic beverage that uses, mostly imported, concentrate grape juice.

While English wine is actual wine made from vines grown in England.

More: https://www.google.co.uk/amp/s/amp.theguardian.com/business/...