It's a tough road for the Titans from here, but they have so much fight in them they could still surprise and make the 8. They desperately need some luck with injuries.
Broncos were a bit lucky, Titans gave them two tries while in possession, but at the same time, they butchered 3 or 4 chances.
Broncos dominated almost every aspect of play, so deserved the win, but the Titans stayed in it because they had a kicking game (mixed, but mostly good). The supposedly "weak" Broncos pack was again excellent.
The Broncos don't have the game management or last play options (other than running it in broken play, when they look very dangerous) to trouble good teams in the finals. They need a lot more from their halves, and Hunt returning, or Bird next year, don't seem particularly like the solutions to their poor kicking.