Hmm. On one hand, it wouldn't be uninteresting for the buyer - but for the (at least private) seller, it becomes tricky, because what about the right of withdrawal if payment and shipping have already taken place? The reversal would then be rather annoying, especially if you're left holding the shipping costs. Let's see what decision comes out of this.
It's also interesting how the eBay selling fee would be handled - in the event of a buyer's withdrawal, the payment of the eBay fee would also have to be waived, at least the portion dependent on the selling price.
At tagesschau.de - Die Nachrichten der ARD there is the original article.