Not sure the lights were off in most of those games. If your argument is Dallas consistently played from behind, I agree. If the point is they were meaningless scores, not so sure.
2016 - Pack won on game ending FG
2018 - Rams up 8 @ 5:20 in 3rd through 7:16 in 4th; again @ 2:11 in 4th
2021 - SF up 6 with 8:00 left (no one scored again)
2022 - SF up 4 with 11:00 left; SF up 7 with 3:00 left & Dallas with ball
2023 - game over by halftime
In the 5 playoff games
@Bobhaze listed, Dallas trailed in all but 1 going into the 4th (‘22 tied).
Points scored late 3rd & 4th
2016 - 17 (lights still on)
2018 - 14 (lights still on)
2021 - 10 (lights still on)
2022 - 3 (lights still on)
2023 - 21 (lights never turned on)