Because Salesforce did nothing after hushcon? Which means it would have been approved.. say if it wasn't approved, isn't that a failure on SF's part because the employees would think it's fine.

I don't see why you keep defending Salesforce, they did mess up even if say the employees did not go through the approval process. You don't fire People over that, especially if previous talks are public on the same subject. Especially not at Defcon. That's why SF is in the wrong.