Going into the game, the Rams defense had given up only 4 Passing TDs

[SackMaster]

Look at their results:

1. Geno Smith = 1
2. Brock Purdy = 0
3. Joe Burrow = 0
4. Anthony Richardson = 2
5. Jalen Hurts = 1
6. Joshua Dobbs = 0
7. Kenny Pickett = 0

Then they played the Cowboys:

1. Dak Prescott = 4

Ya, their weakness on D was their Run D.

Gotta give credit to the Offense. It wasn't the "Greatest Show on Turf", but it took apart a very good Passing Defense.