I agree with this assessment for the most part.
This is true in part. The defense did have a hard time getting off the field. But here were the Pats' drives:
3 plays, 7 yds, 1:24, punt
9 plays, 18 yds, 4:38, punt
2 plays, 8 yds, 0:33, TD
10 plays, 52 yds, 2:12, FG
3 plays, 9 yds, 1:43, punt
8 plays, 55 yds, 3:51, missed FG
6 plays, 14 yds, 2:38, punt
10 plays, 67 yds, 3:28, TD
I won't count their last "drive" with a few seconds left on the clock. So that's 8 drives. Seven of them lasted less than 4 minutes. Only 3 of them went longer than 50 yards. They had two 3-and-outs (first possession of each half).
I mean, they got as many possessions as the Steelers did, but the offense simply did not do much with the ball yesterday.
For example, here were the first four drives of the game:
Pit - 11 plays, 68 yds, 5:52, TD
NE - 3 plays, 7 yds, 1:24, punt
Pit - 16 plays, 72 yds, 7:47, FG
NE - 9 plays, 18 yds, 4:38, punt
At that point, Pit had run 27 plays to NE's 12. Pit gained 140 yds to NE's 25. Pit possessed the ball for 13:39 to NE's 6:02. Each team had two possessions. If NE had kept the ball longer on offense, Pit would have had less time to have the ball themselves.
These things can tend to go hand-in-hand.