As stated,I don't find viva's wordings of the sale confusing, but if it did, and a customer asked a customer rep about it, then it would also served it purpose, as it gives the customer rep an opportunity to explain (and push) the sale to the customer.
BTW, Magnavision did repriced up a few of the items (from 299 - usually 199 on sale) to 375. So on those titles, the discount is really minimal.