At first I thought Cooks was wrong for not finishing his route. Then after watching a different close up view of the play, I saw Alexander put his hand of Cooks' should pad and pull him back and out of the way to Alexander could get in front of him to intercept the pass. This could have been called holding or PI. The defender cannot use his hands or arms to impede the path of the receiver to the ball. But that is exactly what Alexander did. This is why Cooks appears to not finish his route. I am not going to whine about it. They lost 48 to 32, but at that point in the game that play was huge. My theory is the refs let it go because it was inside 5 yards where contact is allowed.
The Cowboys have to get better at acting when they get held of interfered with. Like other teams they need to get up and throw their hands up in the air and do the pulling the flag motion 20 times. It seems to work for everyone else.
I am not excusing Dak, it was a bad decision. He should have gone to CeeDee on that play.
And btw, we don't know what Dallas was looking at CeeDee was running a route behind Cooks. He could have been looking at either of them or both of them.