As much as I can't stand the Cowboys - I gotta admit: One can make an argument they may have the most dangerous offense in the NFL. Good O-line (which neutralizes a good front 7), good WRs (and one excellent one in Dez), great RB (when Murray doesn't fumble), and a future HOF at TE.
Taking DAL +9 is not a bad play here. Seattle can be thrown on, despite what conventional wisdom says (and yes, that includes Sherman). There is no shutdown CB anymore in the NFL, and every CB has been burned in some sort of fashion this year thanks to the new NFL rules.
On that note, if some how DAL can contain Wilson in the pocket and not let him run buck-wild, DAL has a fighter's chance to win this outright. (Of course, this is a BIG "if".) AZ and SD gave the blueprints on how to beat SEA: get aggressive against their secondary, run inside the tackles, and contain Wilson from running for first downs (like he did last week against WAS).