Other factors in play
Besides the CSM's, which seem to have gone over like a lead balloon with the gaming public, there is the lessening of penetration at nearly all of the Las Vegas casinos. They do it to foil card counters, but it costs them money. More shuffle time = less action, and less action = less profit.
Think of this. A six-deck table with four players, who have an average bet of $25. For each half-deck cut out of the shoe, the casino loses $200 worth of action per shoe. If the average player is playing at a 2% disadvantage, then the casino is losing $4 per shoe. Multiply this times each table in the casino, and it becomes big money.
A six-deck shoe penetrated to 5.5 decks will yield a little over 21 rounds per shoe to four players. It will take about 12.5 minutes to deal the shoe to the next shuffle. It takes about 100 seconds to shuffle the shoe using simple shuffling methods. Altogether, with a 5.5 deck cut, a casino would get 4.3 shoes per hour, or about 90 rounds per hour with this cut. By cutting out 1.5 decks, which seems to be closer to the norm, the casino is now getting 17 rounds per shoe. Counting shuffle time, the casino is getting 5 shoes per hour, but only 86 rounds. Each round, at $25 per hand, is worth $2. By recucing penetration, the casino loses $8 an hour. That adds up. Using this as an example, a casino with an average of 10 tables in action at all times is losing $1920 per day, or $700,800 per year. The casino's total action is reduced by more than $35,000,000 per year.
Casinos also slow down the games by using complex shuffles designed to foil shuffle-trackers and by closing half-full tables to create full tables. Every single move casinos use to combat card counters and other advantage players carries a cost to the casinos.
Casinos would rather reduce their bottom-line profits than allow any player to make money at their tables on a consistent basis.