https://www.espn.com/nfl/team/schedule/_/name/min/season/2022
Last year, Minnesota started out 8-1. They won a ridiculous number of games by one score or less. It wasn't because they were some veteran team ultimately skilled in doing everything perfect to slide in a narrow victory. It was because they were lucky.
They got smoked in the playoffs by a pretty mediocre Giants team.
https://www.espn.com/nfl/team/schedule/_/name/pit/season/2020
In 2020, the Steelers started out 11-0 with 6 of those games being tight. They folded late and got beat by Cleveland in the first round.
.........
People really want the record to mean something. They want a narrative and a story to tell on Monday. No one wants to admit that close games are frequently the result of luck.
Good teams blow people out. Super Bowl winners almost always were among the league leaders in point differential. Its a better predictor of future success than record.