I do travel to DTW quite a bit, so from a personal standpoint I'd love to have an AC there. But I can't imagine the economics would justify it unless BA returned to the market. The LH lounge is laughable foodwise for the hours its open to PP members.
Travelers to DTW tip -- go to National Coney Island. Order a hani sandwich and cheese fries. Thank me later. And then call your cardiologist.