This will not directly answer your question, but may be useful:

Macy's Wine Shop, Martha Stewart Wine, and Wine Insiders are the same company. See this post: https://www.flyertalk.com/forum/amer...t32567931.html

As far as I know, Naked Wines is unrelated and has a different business model.

Many of the wine brands which periodically advertise through Offers are owned by the same holding company. This does NOT mean it is the same wine in the bottle, only that it is a corporate decision to use the marketing channel. See this post: https://www.flyertalk.com/forum/29925429-post29.html