It does list it as a game jersey and not game used or game worn jersey. It also mentions it as an A5 for grading purposes, which to me means it would be no better than 50% likely it was worn by the player. It does appear to be team issued which is probably why the grade was A5.

For $500, it is not worth that much and it currently has no bids. I would have no interest in purchasing this, as I am a Steelers fan, but see your point. If the price was $250 or even $100, would you bid on it?