Whormoan, not sure when you looked, but the defensive & Special Teams scoring total takes a little longer to come in to be official.
For example, here was what Pittsburgh's Defensive & Special Teams scored last night.
18.40 Points
GAME TOTAL BONUSES:
<LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 1.0 sack (1.00 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 10 total points allowed (6.00 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 320 total net yards allowed (4.00 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 1 blocked FG (1.00 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 1 interception (1.00 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 1 fumble forced (1.00 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 1 fumble recovered (1.00 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 11 punt return yards (0.50 pts) <LI style="MARGIN: 0px 0px 0px 16px; COLOR: rgb(0,0,0); FONT-SIZE: 10px">Pittsburgh Steelers 116 kickoff return yards (2.90 pts)
And when you think about it, no, you are absolutely better off with the better defense.
Look at the various points Pitt's scored last night.
Yes, you get points for running back kickoffs, but you also get them for running back punts, which give you twice the points:
Punt Return Yardage = .10 for every 2yards, or 1pt for every 20 yards
Kickoff Return Yardage = .05 for every 2 yards, or 1pt for every 40 yards
The points you get for running back kickoffs isn't nearly going to make up for the points you get on all the other scoring a good defense gives you, as you see above.