SOS does have merit over a large sample size. We are 9 games in. You can see who has played tougher teams. Now, I do understand that it's a short season and that if you as a team are undefeated, your SOS should be lower because every team you played lost the game vs. you. It's part of the reason why the AFC east bottom dwellers were awful for 20 years. They had 2 losses per year to the best team in the division. So the Eagles SOS should be lower than reality because they won all of their games. They have also played a lot of awful QB's. My beloved Patsies, who are not a good team right now, could be 8-0 against that group of QB's.
I do think that SOS has merit going forward. That is, if the Seahawks end up with 11 or 12 wins they will have beaten some very good teams. It's really just amazing how the NFC East is the power division in that conference and the NFC West is not all that good. Defense is reigning supreme in the NFC, with the exception of the NFC West where the Seahawks are in the lead with the highest scoring offense in the conference. Can you believe that? The Seahawks have the highest scoring offense in the NFC and almost the league. Amazing.
They give up a lot of points, but most of those games came early. 6 of their final 8 games are against teams with NFL quarterbacks. It's all in front of the hometown team.