teams that don't run typically are losing and they are playing catch up.
These remaining teams are all great passing teams and attack and get leads. They get more plays because they get first downs. They get to run in the 4th quarter because they have leads.
The NFL is proven that teams that pass and I believe all would say that the Patriots with Brady, the Saints with Brees, the Rams with McVay, and the Chiefs are 4 of the top passing teams not only this year but year after year.
You win in the NFL by passing the ball.