Also, the fact we are talking about a Monero casino makes me wonder who they could possibly comply with anti-money laundering laws. It is not a secret Monero is one of the favorite coins of criminals on the internet to keep their money away from the reach of law enforcement, regulators and issuers of licenses.
Either this casino have some special deal with the authority which allowed them to have a gambling license or their minimum wagering requirement is significantly high when compared to the rest of the gambling market.
It is a pity their official representative has not chosen to come here more often, as you mention, it does not evoke much trust.
Your points are very much valid as we know that Monero's privacy features are a challenge for the AML compliance and they won't adhere to them. Although it is not that Monero is only used by criminals but its just a general perspective. Use of XMR in a casino is good indeed but it isn't the headache of the gambler as how they are making themselves compliant to the law enforcement agencies. Maybe in some part of the world, the legal framework is more flexible and they are allowed to operate

Monero is not only used by criminals and hackers from Russia, that is true. It is a very good project with a very valid and rightful purpose, to keep money private on the internet, but regulators and license issuers do not care about it, in their eyes, anyone using Monero or other ways to keep their finances a secret is a potential criminal, scammer or drug lord.
Law enforcement do not actually like to discriminate users, because that would be very inefficient and costly to them.
I am just afraid this casino will eventually suffer from problems in the future when regulators realize the high volume they have accumulated in Monero and they not fully complying with the exclusion of those kind of coins. There is a good reason Binance and Coinbase excluded Monero, you know?
Because of pressure from regulators.