I think this is also for their security.
While I understand that having a designated team members in a certain project (e.g. ANN threads, startup token projects, etc.) are essential in order to confirm the authenticity of their goals and plans, in a gambling casino, it is somehow irrelevant. What separates a genuine casino from a scam one is the former's representation of itself and years of service with continued trust by establishing their reputation.
Lastly I also want to point out that having a team member's profile in an online casino can be quite difficult especially if we are talking about the nature of their project. Naturally, a person may feel devastated if they lost on their games or if they staked hundreds to thousands of $$$ worth of crypto and they may channel such rage and emotion into looking for the identities of the team members.
In conclusion, it may indeed compromise the safety of the team members.
Definitely, its a security threat to display the real identities of casino team, transfer of aggression is always inevitable in the moments of terrible loss on the side of a gambler and the casino rep might be in great danger as some mad gamblers might conclude that the casino intentionally make them loose and will likely take their revenge on any member of casino team available.
People might even go to the extent of asking for cheats from the team member and noncompliance might mean harm to them, even if they don't have any,
Lastly, no matter how transparent a casino its with their dealings with their clients, revealing the identities of their team members is not ideal at all and should never be encouraged.