THAT site assumes every game is 50/50 ... except home team has advantage ... so they assume AZ has better than 50% to beat SEAHawks.
there is no site that I know that does it right.
SEA is 7pt favorite.
Neither game is easy but I would say the Seahawks chances of beating my Olde Redbirds and their 3rd string QB on the road and then the offensively challenged Rams at home are surely over 50%.