My question, if this has been done through bitcoin or any other cryptocurrency what'll be the remedy. Here atleast some amount is being recovered, as the transactions were made through a centralised banking services. This way does governments encourage the usage of cryptocurrencies in the future on official needs.
Bitcoin obviously has some negative points as well. One of them, in
certain situations, is irreversibility.
The only "remedy" would be properly analyzing the txs and backtracing the employees so that whoever did it has to serve the right punishment. Otherwise, what'd happen is a mirrored situation of the Mt Gox funds: they're just gone. We'd probably just have a few hundreds of articles talking shit about Bitcoin and that's it.
Anything comes with a cost, including decentralization. That goes from stuff like losing your seed to anything else a third party cannot solve. However, these costs and negative points of decentralization will never exceed those of centralization. I'd rather live with the risk of losing my money than living with the feeling of slavery and control.