I read that thread on Casinoguru and so far, there is suspicious and skeptical thinking about that user. There is also no final conclusion about the case yet but from what I read, it does not has anything to support the user to claim that winning.
Before the case is finalized by the regulator, it is not right to say either the casino or the user is the winner. Casino guru also recommended that user (if not you) to wait for updates from the regulator. Else you can go with hiring a lawyer to do it, escalate it for you.
I am neutral but it seems evidence shared to Casino guru and regulator, their, so far, thinking is not on that user.