If the casino has a beef with anyone, it should be the card manufacturer as a defect in manufacturing, inspecting, and packaging caused the casino the losses, not the player that was involved in a game that used the cards. The actual contracts with the card manufacturer would determine the liability, and if further breach of contract liability exists.
Also, the casino still has a percentage of liability for it’s own losses because of poor training on the part of the dealer to spot the defect, the pit bosses who oversaw the dealer(s), and the floor managers who approved the special conditions requested by Ivey, including the increase of the table stakes.