Yes, the Browns were the most overhyped team entering the season. Now, though, the pendulum has swung too far the other way. The Browns aren't as bad as they've looked. This is a step down for the Browns after they played the Rams last week. 

Baltimore nipped Cleveland, 26-24, at home last season. The Browns are far more talented this season. It's taken a while, but I see Baker Mayfield and his talented skill position players putting the pieces together in this matchup. The Ravens' defense down is from a year ago and they have multiple injuries in their secondary. Mayfield will be able to spot open receivers. 
The Ravens are at their worst in the role of home favorite, too, where they are 1-7 ATS the past eight times, including failing to cover the last four times as home chalk. Baltimore is the most run-oriented team in the league. They are not built to cover margins like this especially in a huge division game.