This began to change with the evolution of the Read-Option run game. Before Week 14, Read-Option was only called twice in the Red Zone (once against New England in Week 6 and once against Chicago in Week 13, in Overtime).
However, this shifted noticeably beginning with Week 14, as the Seahawks called Read-Option multiple times per game (the lone exception was against STL WK17, one time) to much success.
WK 14: 3 car/48 yds
WK 15: 5 car/37 yds
WK 16: 4 car/17 yds
WK 17: 1 car/15 yds
Wild Card Round (WCR): 5 car/34 yds
Divisional Round (DIVR): 2 car/ 5 yds
The Read-Option was run out of 10, 11, 12, 20, 21 and 22 Personnel. For the season, the Read-Option stat line in the Red Zone is 22 carries for 157 yards with an average of 7.13 yards per play. 7+ yards per rushing attempt is a ridiculously high average but it's even more impressive that this was in the Red Zone, where the field is smaller and the opposing Defense is more condensed. It is for this reason I predict the Read-Option will be a featured part of the Seahawks Red Zone play calls in 2013.