Defense Trending and Leading the League

Just overheard a stat on one of the post game shows. Coming out of our bye, with these last four games(including today's game) the Seahawks are leading the league in points allowed 15.5 pts per game. The defense is ranked number 1 in points allowed, considering one of those TDS was a KO return. None the less, talk about making a key turnaround late in the season when it matters most. Can we keep up this 15.5 pts per game? Who knows but it's trending in the right direction.