Super Bowl Stock Market Indicator

Have any of you heard of the Super Bowl Stock Market Indicator (bellweather) whereby if an original NFL (now NFC) team wins, we will have a bull (rising) market. If an original ALF (now AFC) team wins, the stock market will fall (a bear market). The indicator has been correct most of the time. Snopes has a great article on the indicator at Snopes, but as Snopes says, just because there is a correlation, doesn't mean there is a causation. Since the Pittsburgh Steelers won (an AFC team), it would mean a bad market, since they beat the Seattle Seahawks, an NFC team. But wait. The Steelers were formerly an NFC team; and wasn't Seattle originally an AFC team? Does that mean we are going to have a bull market, or a mixed up market?