No reason Seattle shouldn't be favored here. Jackson is not healthy and he is half their offense. If bradford thrwos 40 times against the Hawks he will get buried.
If they announce Jackson isn't playing in the next few days this line will drop.
For you trend guys:
Seahawks 6-0 last 6 against Rams when they are favored.
Seahawks 4-1 last 5 played in STL.