The point of the story is 'caveat emptor'. It was not jj's intent to tout WS or his/her own editorial prowess, but to share an article that raises a disconcerting truth; many of these shelf talkers are inaccurate - which is fraud, regardless of how minor the error may seem to you.
A similar thread ran following this Washington Post article over on the ebob forum. Numerous tales of misrepresentations surfaced; wines labeled with ratings that were given to different vintages seemed to be the most common theme, but all suggesting that this is not an isolated instance. If ratings cause consumers to buy, then good faith in representing those ratings is incumbent on those who are selling the wine - or else they are committing fraud.