They were able to restore withdrawal without much delay for their customers, which I see as what customers don't like being denied access to their funds.
Second, as long as customers funds were not affected, I don't see any reason for the players not to trust them. The only thing is that after they have covered up the mistake that led to that hacking, they should also try to improve in security to avoid such from happening in the future; they can't keep losing money to hackers.
For a casino that lost $4 million yet managed to resume operations, it speaks volumes about their financial strength. Given this incident, they are likely to invest in improving their online security, especially their hot wallets. Hacks across various platforms happen from time to time, as hackers are always looking for vulnerabilities to exploit. Despite what happened to Metawin, the fact that their operations continue shows that this isn’t a huge concern and highlights their financial readiness.