If those other teams that scored the same-ish number of points as the Patriots had more games in the 30s than NE, that also means they had more really bad games too.
KC: 48, 42, 41, 36, 35, 34, 33, 31, 31, 28, 24, 22, 20, 20, 19, 13, 3
50s: 0
40s: 3
30s: 6
20s: 5
10s: 2
1s: 1
Top 3 scores: 131 (43.7)
Bottom 3 scores: 35 (11.7)
Top 5 scores: 202 (40.4)
Bottom 5 scores: 75 (15.0)
NE: 54, 50, 45, 36, 29, 27, 25, 25, 25, 24, 24, 21, 17, 17, 17, 16, 14, 13
50s: 2
40s: 1
30s: 1
20s: 6
10s: 4
1s: 0
Top 3 scores: 149 (49.7)
Bottom 3 scores: 43 (14.3)
Top 5 scores: 214 (42.8)
Bottom 5 scores: 77 (15.4)
There's no doubt that KC (which we all agree was better and much more potent, even though they scored similar amounts of points - 480 for KC, 462 for NE) was better and more consistent. But they also put up a real stinker unlike anything NE did (the 3 point game at Ten).
The Patriots scored more points at the top end of the scale (either top 3 or top 5, whichever you prefer) AND at the bottom end of the scale (either top 3 or top 5, whichever you prefer). But KC was much better in the middle.