If you read this post , you can see they programmed the game with 4 decks of cards, it's very clear. They also explained the rules to their blackjack game and don't want to make it more in favour of the player by allowing resplits and doubles after splits, casinos allow that but they also can kick you out if you're a really good player. The odds are already great if you use a simple blackjack strategy card.
RE: Delving into Fairness: Kryptogamers.com