The impressive opposition wins to me were San Diego and Dallas. KC was during some major chemistry issues. St Louis was just weird
San Diego and Dallas had great QBs that dinked and dunked, had a long ball once in awhile. Dallas threatened a running game but was not successful but it was something still to consider. Both QBs didn't scramble much from what I recall
Following that roadmap: The way to beat us?
Same strategy, with arguably the most accurate and smart QB in the league. And to execute this he won't need to scramble
Dink and Dunk. Underneath routes which you can get on Sherman. Once-in-awhile long ball when you see it (won't happen often, we won't blitz often). Tire the defense out and try to take the will out of them. In San Diego part of the tiring of defense was the sun and weather. Both Dallas and San Diego played arguably their very best offense those games.
Lots of patience.
Ordinarily the Seahawks offense probably can put up 17 to 23 points, but that also assumes the Seahawks defense does their job. With an opposing offense patience and dink and dunk, they will eat time and score. The final would likely be something like 24 to 17
Why it is less likely to work this time
Both the San Diego and Dallas games took place early on, well before the Seahawks defense was in sync and attacking. If you try the above scenario now against an in sync defense, it will not likely work. At the very least, the Seahawks D will now hit you regardless of what you do, which over time will take its mental and physical effects on the opposing O over the game and make them less likely to execute such an offense
If the Packers can somehow still reach down deep and impose their will on the very strong will of the Seahawks, they can win. I don't see it as the likely outcome, but if there is a Packers win I see it happening like the above. But I don't see it happening without some mistakes by the Seahawks themselves.