Reading the actual opinion, it states:
The Monte Carlo did not show either that it detrimentally relied on Chen's misrepresentation or that Chen's misrepresentation was the proximate cause for the casino's damages for two reasons. First, the Monte Carlo requires a patron seeking more than $10,000 in playing chips to present identification only for regulatory compliance rather than to determine whether the patron is a card counter.2 The Monte Carlo has no policy instructing casino employees to cross-check the patron's identification with any sources that might identify card counters.
So if this player had presented his real ID, he would still have been allowed to play in this Monte Carlo case. What would have happened, if the player opened up another account under the banned name? If Heritage would let the banned player open an account under his banned name, accept deposits and play, this case would be on point.
The Monte Carlo case would be analogous to a book/casino hearing about a suspected shady player from another book, and seizing his winnings without a prior warning or banishment. If Monte Carlo had trespassed/banned the player at an earlier visit, the outcome in the case you cited would have been different.