I don't think Seattle goes in to beat them, but I voted for it anyways. Just think it has to balance out at some point. I can't see them going into Baltimore and New Orleans 2 straight weeks and win both though.
Best QB SF has played so far has been Goff (based on track record) and they stuffed him.
Winston, Dalton, Rudolf, Mayfield, Goff, Keenum, K. Allen
2nd half they get Wilson twice, Rodgers, Brees, Jackson, Goff, Ryan, Murray. Don't expect SF to go undefeated. Given who they have left, if they split SEA and say LAR also gets a split of the season series, I think they at least go 1-2 vs GB/NO/BAL. That takes them to 12-4 or 13-3 depending on how well they fare. Tie breaker situation with GB/NO would be on the line. Hard to sweep a good divisional opponent.