Well, it was fun while it lasted. After Sunday’s two-pack of Cowboys-Steelers and Seahawks-Patriots generated rim-rocking ratings, the year-to-year, apples-to-apples dip has returned. Via SportsBusiness Daily, the Monday night game between the Bengals and Giants generated a 7.9 overnight rating, which represents an eight-percent drop from last season’s Texans-Bengals game played on the tenth Monday…