I think his point was that RG3 is not the favorite therefore the stat posted by The Boys is valid.
Besides that, Seattle is 5-3 on the road this year. Wilson played well in Chicago in front of a hostile crowd but, this will be his only other exposure to an away game where the crowd will impact his ability to hear and audible.
He threw ten interceptions this year, eight were on the road. His QB rating was 105 at home, 82 on the road. This is a rookie QB away from home and his team is giving three points. Washington figured out a defensive approach to stop Dallas and I think they do the same thing to Seattle.
I think the Capper's ML angle is correct