Hmm...It seems from the link that the Casino provided the deck of Gemaco playing cards, by request. Is using a defect in the game cheating? Or is it good playing skills?
The casino alleges that Phil Ivey tricked the dealer into turning specific cards over in a specific way so that those cards would be obvious to Ivey even after the cards were shuffled by machine and replaced in the shoe, giving him an advantage.
Normally I'm all over casinos who have double standards: when patrons lose, well then, of course everything is fine. If they win, then they are plied with free drinks to get them drunk and loose their winnings (a practice that should be illegal). If they are card counters (which is just playing by the rules really well to get a minute edge) they are thrown out and black listed across all casinos. (If card counters can win and casinos don't want that casinos should have an obligation to change the way the game is played, not the ability to throw out good players).
However, in this case Ivey allegedly actively had the cards manipulated to give him the advantage. If he had just passively used the asymmetry of the cards the casino provided to give him an advantage the casino would be full of it, but if Ivey had the cards manipulated before shuffling by the dealer using pretextual instructions, then it seems like Ivey was sharping.