In my view there is no such kind of threat for casinos that adhere to the strict AML policy backed by legal and approved software which perform AML screening of casinos' customers and have the relevant licences from government. Commonly the fee for such licences are high enough so such casinos are valuable sources for pumping up the budget of the given country.
I don’t think there’s any special software that’s excessively costly for casinos to combat money laundering. Most of their processes are based on the mandates of their regulators. This means they’re likely using a universal system similar to what other casinos implement. Money laundering systems aren’t something that run continuously like their daily operations. Instead, they are triggered by specific red flags or events based on the casino’s internal controls.