There is always a way to detect AI, and stop its potential to become a harmful tool, now text written by AI can be detected with tools that are even freely available on the Internet. Bookmakers are always one step ahead of players, they will not lose even though technology has developed rapidly, as well as in trading Bitcoin or other Altcoins. There is always a way to minimize losses.
The same way that tools have been made readily available online for them to be used in detecting AI-written contents, that's how some tools have also been made available to bypass such checks and make those write-ups look like human write-ups.
I know the gambling system won't allow to be cheated for a long period of time. Even if the gamblers are trying to discover a way that they will use AI to manipulate the system, it won't take the bookmaker long time for them to block such, so it's something of less concern to casino owners.