You are not giving Seattle enough credit. I posted about it above:
There were also a minority of analysts from NFL.com, CBS, and ESPN who picked Seattle big. Maybe you are too focused on Star Wars offenses to notice?
The fact is Seattle lead the league in Defensive scoring, yards, passing yards, yards per attempt, YAC, QB pressures, Interceptions, turnover differential, etc. The special teams have also been great. And for as "bad" as their offense has been they were 8th in scoring. Seattle played a lot of Top10 defenses down the stretch and had a much harder road to the Super Bowl.
Oh, and they completely shut down the best statistical offense of all time. This was the 85 Pats or 2000 Giants. The 2013 Broncos were an offense for the ages. So give the Seattle team their props.
As for the swing at the young upstart QB, I think you should take that back Wilson's line isn't great and they were missing Okung (LT) and Unger (C) for long stretches as well as their Right Tackle making a below average line even worse (Wilson was the most pressured QB and sacked 44 times). They also did not have Harvin all season and Rice for most of it--they were literally functioning with #3 and #4 receivers all season. And how did he do?
13-3 record, ~ 64% competition percentage, 26 TDs, only 9 INTs, 100+ passer rating, and like 500 yards rushing.
Look at his Super Bowl line: 18 of 25 (72%), 2 TDs, no INTs. Looking deeper you would see Wilson made a lot of timely plays (third down conversions through
3 quarters):
Third-and-9 from Denver 30: 12-yard completion to Jermaine Kearse.
Third-and-6 from Denver 14: Scramble for 5 yards (almost converted).
Third-and-7 from Seattle 31: 9-yard completion to Golden Tate.
Third-and-4 from Seattle 46: 6-yard completion to Baldwin.
Third-and-5 from Denver 43: 37-yard completion to Baldwin.
Third-and-14 from Denver 14: Incomplete to Kearse.
Third-and-4 from Denver 5: First down on pass interference (attempted pass in back of end zone).
Third-and-17 from Seattle 19: Complete to Tate for no gain.
Third-and-7 from Seattle 45: 12-yard completion to Luke Willson.
The problem with Wilson is the same issue with the Broncos: People over-weigh stats. The Broncos had 5000+ passing yards, 55 TD passes, and 4 players with 10 TDs or more. BRONCOS = BUFFED in minds of fans. Wilson only passes ~ 25 times a game and averages 200 yards. WILSON = NERFED in minds of fans.
And you are right, without the free safety the game would be 41-8. As for close, you maybe missed it, but Seattle let up after three quarters. They pulled Lynch early, pulled Wilson, and were clearly milking clock the last 20 minutes of the game to get it over with. The game could have been 57-8 if Seattle had wanted.
This game wasn't even close and Seattle's defense was great all year and deserves a lot of credit for stomping the best statistical offense of all time.