I respect the insanely complicated amount of work that goes into their analysis of games. It's really insane (to me at least, and I'm math neutral!).
BUT! While the numbers of per play average, or yards per rush, or completion percentage, or 3rd down conversion, may look great (terrible sentence structure, I'm tired); you can not make up for the fact that we didn't make the plays needed to win. The numbers lose out to the guys on the field. We left points on the board thanks to drops, fumbles, and plainly not making plays.
I don't think it's the end of the world by any means. At some point, the ball will bounce our way (i.e. the luck factor), but until we start finishing drives, catching those balls, and taking some calculated risks offensively, we're not going to win as often as the numbers say we will.
About of defense: we held the Seahawks to 12 points. I mean, in today's offense first NFL, that's a great number. That gives your offense a great chance to win. Sure, would have been swell to stop Seattle after the fumble. Golly, I was hoping and wishing for Luke or the Kracken or anyone to make a game saving play. The fact is, they already set the offense up to win by keeping Seattle out of the end zone, aside from one huge play. The game was on the O.
Finally, we could very well end up as one of the best teams in football this year. The key is we have to make the plays that winners make. Like Seattle on those two, back to back pass attempts. Looks brilliant because it worked. If we don't win games, the numbers will mean about as much as my opinion.