Casinos don't even allow scripts that automate the betting process of a specific game, they only allow automatic betting through their own provided systems just like they are available in dice games and some other games as well, but if someone uses an external script to automate the betting process, they will either limit or block their account because it is against their terms and services and users need to read them before they start gambling.
And I don't think that someone would develop an AI model that will only be used to automate the betting process, if they create some model, they will try and make it for sports betting so that it analyzes the upcoming matches and provide winning probabilities for both sides for gamblers to decide.
Account blocking is something that casinos might do if they become aware of a gambler using those automated scripts. But maybe there are still people who can use those scripts without the casinos getting caught and sooner or later, the casinos will find out too and it's only a matter of time. As a business owner, the casino will always protect itself from fraud committed by its customers just because they want more wins than usual.
For AI in sports betting, maybe gamblers only collect betting data using AI to speed up the data collection time so they can immediately place bets based on the data they have obtained. But to get an accurate prediction about the match that will take place, it seems like it won't be easy because there might be changes that can occur during the match.