Also, to Schilling's point, the Bruins and Flyers aren't necessarily rivals. I wouldn't consider them rivals at all for that matter. While the Yankees choked against their arch rivals who went on to end their 86 year title drought. Now, if the Flyers went on and won the Stanley Cup, this "upset" might gain recognition. In addition, the 2004 Yankees were a much better team than the 2010 Bruins (no offense), so having a 7 seed upsetting a 6 seed, however the manner, in which they are not rivals, isn't that big, no matter how hard Jacko tries.
If that isn't enough, this was in hockey. Baseball is a much bigger sport than hockey and a meltdown in baseball is significantly worse than one in hockey.