It means that other teams were, probably, doing something different and they didn't succeed any better than we did and, probably, had better #2 corners, more experienced safeties and a proper set of ILB's. it means that the points they scored in other games is an example of the results of when other teams tried those other things. It should be some indication that those other things didn't work any better or only marginally better.. If they had only been scoring a bunch a points in just a few games, it would be an indicator that the other things DID work.
in the regular season BAL held them to 10, so whatever they did worked, that game. In the playoffs, SD kicked a bunch of FG to score 23. I'd suggest that, last year, BAL had a better person in the #2 CB spot, the RILB spot and more experienced safeties. The result was, in the PO's they allowed (discounting for the gift TD) 3 less points than we did. Gordon was back in both games (reg season was his first game back), but whatever they did only produced 3 points less with what I would consider better players in those three spots.