I have a feeling that the game script is created with the code to adjust to the players' strategy. We can also observe this thing happen on Dice. After using the strategy again and again, it will somehow stop functioning after some time.
There's really a code and algorithm for that.
The casinos won't allow us to win continually if they've detected that we're using some pattern or strategy against the games that we're playing on them.
That's why no strategy would work for long if you've been winning on it lately.
This can be done by casinos and they will not always want us to keep winning because that might comes as a lose to them.
There are many persons who are always looking for a better casinos a new casinos where they can play bets that is why we just need to be at alert to to go and play on a wrong site.
If casino noticed that you do have consistent winnings they can look for a way to ban your account or reduce the amount you can gamble with.