The argument being made isn't that people should get hacked, so this should be released. The argument being made is that by withholding this information corporate complacency will allow whoever is ALREADY using this exploit to continue to do so (as it has for the past 8 months). Your argument falls down from the point of view that releasing the information will force the company to promptly issue a fix for the vulnerability. In fact, your point of view is only valid if the company cannot or will not patch the exploit. Security through obscurity is a joke, plain and simple, trying to strengthen security via ARTIFICIAL obscurity is just plain desperate. If you really care about your accounts, push for fixes not whitewashes.
So, I say, for the sake of protecting the customer, this should be released.