This is why POW is superior than POS. This shows POS blockchains has a dangerous flaw, the validators are vulnerable to attacks like this. This is impossible to happen in POW blockchains.
I don't believe PoS was the issue here, but that it was simply a bug in their smart contract. However, the shocking part is
them wanting to reimburse stolen funds.
This automatically shows they're able to print tokens if needed, which means they have total uncontested control over coin issuance and also shows their willingness to devalue all (bag)holders' portfolios due to a mistake
in their own code. Why would anyone ever invest into this crap again after seeing what the team is willing and able to do just like that?