Russell Wilson is covering up a lot of flaws for Seattle such as a mediocre defense that doesn't apply much quarterback heat and will be without star safety Jamal Adams. 
This is a terrible spot for the Seahawks - a cross-country trip, early start time and brutal South Florida humidity. Seattle is fat and happy off back-to-back marquee home victories against the Patriots and Cowboys in see-saw type games. 

Miami, on the other hand, is on extended rest having played Thursday night. 
When Ryan Fitzpatrick is hot the Dolphins are competitive. And Fitzpatrick is playing well. The Dolphins are improved in the second year of their rebuild under Brian Flores.