Haven't the Cowboys had a number of players coming down with an illness the last two weeks? Something could be going around and he got it on game day instead of during the week. I don't know the details so I won't criticize him for getting sick. I think fans are a little hard on him. He got off to a bad start with the Cowboys as a rookie, then had that legal problem and he has not played. But I think he shows some ability. His problem looks like inexperience. He has no ball skills. He never looks back for the ball and has no idea what to do as the ball approaches the receiver. But that can be taught. One thing he does have is makeup speed, which cannot be taught.
What I don't know about the guy is if has has the brains to play, the desire to learn, or the will to put in the work. I don't think the Cowboys will cut him. He is not making a lot of money and he could be CJ Goodwin's replacement.