The difference is this.
-If the Ravens make the two point conversion, it turns into a two possession game.
-If the Ravens kick the XP and the Chargers convert a two point conversion, it's a tie game.
-The only issue would be if the Ravens miss the two point conversion and the Chargers decide to go for two with under 30 seconds left, which I'd doubt.
Next draft/off season
They're building a team the proper way, O-Line first.