It was only an issue, because it was Apple.
If it was a generic HTC or LG device, no-one would've mentioned it.
Perception is a powerful thing. Once that hyperbole made the mainstream TV news(again, purely because it was Apple), Jobs stepped in with that press conference event-thing.
He offered every concession possible, from full refunds, free cases, etc, to give everyone a satisfactory option, until the end of September.
Sure, saying "You're holding it wrong" wasn't particularly clever, but once September was over, guess what? Antennagate was not heard of, until now, and it'll go away quickly, as it's old news.
If it really was an issue, you would've heard a whole lot more about, it since September.