Actually, it says the problem was an "intermittent dead battery" so I guess it is similar to my "intermittent top failure". They also say "customer concerns not duplicated - vehicle is operating to specs at this time". My top also functioned within specs; most of the time....................
You never know, the original buyer may be a fleet-level purchaser whose business both GM and the dealer valued over the small amount they will actually lose in such a deal.
Buybacks are not that uncommon, however the dealer plays a large role and if you piss them off or they feel you are being unreasonable you will have a tough time of it.