Kucoin made the great work and it took them a couple of weeks. In comparison Bitfinex couldn't recover 120,000 Bitcoin stolen in 2016. I'm interested if Kucoin will be able to get all $281M back?
The main difference is bitcoin is decentralized while the rest of the coins and tokens does not follow the same principle even though they claim decentralized 
. Even in this instance the website has not revealed any names that could identify the hacker and if they got all the details then why the delay in publicly telling his name and expose him.