If this is true, it means that any game ever played with those 'marked' cards is void. Since Baccarat is a winning game for the casino, it would mean that this verdict could cost the casino many times more than what it has won against Phil Ivy.
Maybe I'm too cynical, but I don't believe that anyone who will now start a court case to claim his money back from a game with these cards has even the slightest chance to win. Surely the judge will find a way to interpret the law text in another way so that it again favors the casino.