300BTC can easily get eaten up on market but it is true that many of their traders have lost their saving and I don't think they gonna get those back anytime soon. This is one of the reason why you shouldn't use exchange platform as your bitcoin wallet.
The article says that they will be compensation the users for the loss and they will be giving $870 as a compensation for the loss of personal information, it is a good step from the exchange and not like the exchanges in the past where the users were searching in the dark because of their incapability .I hate hearing these hacking news as most of the time it will have an impact on the price of bitcoin.