Um, doesn’t this casino have those card shuffling machines, or doesn’t the dealer shuffle the cards? Did they open a new pack of cards with each hand or something? Sounds to me like the procedures of the casino are to blame here.
If you read the article (I know, a FR tradition encourages commenting without reading), you’ll see the casino buys the cards from the manufacturer pre-shuffled. The card manufacturer delivered unshuffled decks of cards.