I doubt any artificial intelligence system could beat any casino neither because its literally a simple win or lose scenario and the house edge keeps the gambler from winning, hence this is not like dota where you can teach the artificial intelligence to play and learn and beat them by luck, you have to really just try your best to not lose all your money and that is it.
AI is something that is basically equal to "machine learning" at this stage and not something that can think for itself, it just learns and not thinks, that is why gambling is not really an option. Of course it can play a billion hands of poker and learn how poker is played but it is definitely not going to be great against any game with house edge at all, it needs to be something that has humans on the other side and not another machine.
Developers want to bring their artificial intelligence to the stage where it will not yield to human intelligence in many areas of activity. In order to participate in gambling - there is no difficulty. And it is quite possible to train artificial intelligence.