I think it doesn't affect much. binance will compensate the stolen investors. This will help binance be more interested by investors.
Only hot wallet was compromised, which makes about 2% of all funds. So users funds are safe.
This right here is the reason for hot and cold wallets.. so in other words, I'd actually say that their security mostly worked.
7k only 2% of bitcoin that stored in Binance. With that big amount of bitcoin that stored there, they might be have strong security to keep it safe. But i think they can compensate their users, already prove if they really professional to handle user's money.