It was not a "good" game, for either team. It was a "close" game the entire time, but neither team really played that well. Seattle continues to hurt themselves with their penalties...second most in the NFL.
Honestly, all the folks I speak with up here expected that there was a strong possibility that the 49ers would beat us...in their home...with a Wild Card spot on the line. At least they did not cover the 3 point spread that Las vegas had on the game.
And, as you indicated, if the 49ers get that far, they will have to come play in our LOUD yard, which Seattle has not lost at in the last 14 home games.