Well, it clearly isn't being sustained right now. But even in the best case, he's not on the ship supervising the kitchen and the restaurant isn't otherwise up to 3-star standards in terms of décor, atmosphere, etc.
I'm so tired of these posts that lump all Americans into some category, as if we're all the same and the rest of the world is so different. Neither thing is true. Many people who refuse the wine don't drink alcohol or don't like wine. And those people exist in all cultures and there are plenty of them in France. If the staff doesn't like it, well, too bad. They exist to make us happy, not to make us drink wine.