I don't believe that attacks are good. They make people nervous and can cause som.e price-fall. Sometimes hacker attacks may succeed (like it was with Zaif exchange) and a loooot of people will lose their money.
What has been breached is a exchange itself so obviously the target is the traders or investors money. I think those kind of attacks (stealing personal data) will force companies to adopt blockchain technology but not bitcoin per se. We all know that blockchain has a lot of advantages like security so I'm sure that many companies are doing studies whether to implement them not just for security purposes by to save money as well. This is really a unfortunate event, so everyone should act not re-act, specially companies doing services to the public, to protect their customer's data.