NuffCatnip: I doubt anything is going to happen. They're actively working on fixing the game, if you could sue every publisher because of bugs, there wouldn't be such a big industry. Just look at all the other Triple A studios and the stuff they get away with on a daily basis.
Just vultures being vultures...erm, sorry, I meant lawyers.
Far as I understand this is not about the game being buggy but about misrepresentation of the bugginess. And based on the last bit of the linked article its not gamers but investors complaining. I dont know any details but this sounds like management or board released it too early fully knowing its not ready in order to get boni for themselves. (But again: This is just my interpretation of those few sentences. I dont understand the linked Polish article.)
The relevant quote:
Lawyers and investors in Warsaw are circling the situation, contemplating a class-action lawsuit against the company for what one attorney described as potential criminal “misrepresentation in order to receive financial benefits.”