Too many people simply don't care. I like to think they can't leak what they don't have, which is a very good reason to keep your private data private.
Now the question is whether Coinbase will inform users whose data has been compromised.
Also, will Coinbase be held responsible if another case similar to the one we had a few days ago
Crypto Kidnappings in France Out of Control! happens because of this?
I know it's rhetorical, but until the other side is responsible, things like this will happen.