Still not that significant. ~20% of the time it's the #1 seeds. The streak is a bit off and definitely doesn't lend to the NFL's vaunted parity but when you only play one game to decide who gets to move on, the chances of a #1 seed moving on are pretty good, otherwise they wouldn't be a #1 seed. We really only notice when the lower seeds make the trip or if #1s lose, if only because it destroys the perception of the value of the #1 seed, as well as the Any Given Sunday narrative. As well, given Carolina's record and their performance yesterday, it really wouldn't be surprising if they won SB50, and in fact if they lose it might lend itself to "was 15-1 a mirage" narratives.