Metawin is now in their limelight, they can never fabricate such a story and I don't know what they stand to gain doing that. What baffled me is that you ruled out that it can be an insider job, lol, you shouldn't do that because you are actually assuming that.
An insider job does not mean the gambling site owners know about the hack. There are some cases that were investigated that were later known to be an inside jobs. All are guess, no one know who the hackers are.
Well with what I have seen so far with the casino I think this isn't an issue for them although I understand the importance to deliberate on the issue but I think little mouse have already cleared out the fact everything is working absolutely fine with the casino and nothing to worry as metawin came prepared and shows their are one of the bigs boys in the casino industry business.
I know Metawin was able to deal with the hack in a way their business is not going to be affect but there will boost in their reputation the reason I prefer to post about the hack here. My post is about how Metawin was able to handle to hack like a pro. The gambling site have backups.