Yes it IS a bug - because the behavior is not desirable and has been changed to be worse than before.
The only way they will learn is by people complaining at them about this.
I should mention though that getting them to actually LISTEN TO THE CUSTOMER may be an exercise in sadness. Is there a list somewhere of communication methods that they actually read and reply to? Other than the usual half-baked lies from the service messaging, I don't know of any. Anyone got any feature-request or this-isn't-working-the-way-you-thought type of email addresses to send to?