As far as I know, the Binance exchange was not hacked. Trade robots connected to the Binance exchange were hacked.
Yeah you are right binance exchange wasn't hacked and all funds are safe from the official announcement from the binance officials.So the people who are not trading to often move your funds to safe wallets because keeping or storing your funds in exchange wallet is not safe.
But that rumor made a huge loss in bitcoin orice and I hooe it will recover soon.