I think the Ravens just ran into a buzz saw that has a good formula for being competitive in road games (running game, physical team, good defense). I really dont think it was rust or any of that.
Also a reminder that final record means less than how you have played more recently. Tennessee may have been 9-7 and barely made the playoffs but they also were 7-3 in their final ten games and solidly one of the top 10 teams in the league the 2nd half of the year.
I give them a decent shot at KC or HOU. They believe in themselves and opponents know what is coming. I dont have a dog in the AFC fight but I do work with a lot of Nashville people who are enjoying this.