Over time (another 20 years or so), the memory of that catch will fade except for it being the final straw leading to resolution of the NFL's labor disagreement battle with the Referee's union.
Had it occurred during a playoff game, it would be remembered as much as "Wide Right" and the Immaculate Reception... but it didn't.
And there is nothing that we can do in the near term that will change the national perception that Green Bay was screwed and Seattle was gifted a win.
And if the Seahawks make it to the Superbowl this season (and especially if they win it all), the history books (Wiki article) will be about the magical season Seattle experienced with a rookie QB named Russell Wilson.
That, more than anything else, will cause the Twist of Tate catch memory to fade away into obscurity.
Superbowl XLVIII Champions..."Can't keep everyone."