The casino has a system that can detect all suspicious activity and people who do suspicious things by the casino will be immediately marked, they understand that but still do it because they feel that the opportunity is still there to take advantage of the casino and will play as a victim when they get the opposite.
They do have such detective system because if they don't have it but launch their platform, their platform will be exploited by cheaters in very short time.
Those systems are automated but they won't make decisions against any account based on automated decision making systems. They will do it manually by investigating collected data from their detective system. Sometimes decisions can be made quickly if violations are clear and serious. Sometimes they will observe for a while before taking action and terminate that account.