Despite all the added security and what not this still happens, at exchanges that hold large amounts of money in both fiat and BTC. It's kind of disappointing. What's the point of having a cryptocurrency when this happens over and over again?
Also, it's a bad name in the press as the public will be even more scared of using/accepting bitcoins as payment.
You are right just because of these mistakes many exchanges lost big amounts and faith of many peoples now some are thinking to leave this crypto world