Here's Taly Williams pretty much maintaining his wrist cock
He doesn't cock his wrist very much if at all in that swing. Look at where his club is at the top of the back swing its pointing up in the air. A cocked wrist would have the club face pointed in the direction of his target.
Edit: If i have the fancy drawing tools i could show it a little clearer, but look at the angle between club shaft and forearm. That is not a cocked wrist.