There was a time not too long ago when the NFL was scared. They were scared about losing viewers because the game was too boring. They were afraid of baseball and basketball. They were unsure of their place in the world. They implemented rule changes that would nuke scoring and create more highlights. While they made subtle tweaks in the modern era to fuel offenses and enter a more mutually beneficial relationship with the burgeoning fantasy football industry, they were no longer worried about getting caught from behind.
The NFL has pivoted from being uncertain to so certain, to the point where they have now established a nostalgic view of what the game looks like (even though, without the desperation and fear, it would look nothing like it does today).