It's a shop... No one can afford to give away things for free. They pay for the tongues seperately to sell on its own, therefore they don't buy them to give away to anyone who buys boots from them. They sell a lot of boots. Pay more attention to sales, it said 50% off, it didn't say 50% off their already discounted price that they give out because they're a great shop and care about their customers/community.
Brian over at CO is a great guy and runs a big business. Instead of posting a rant on the internet where the majority of people are going to stick up for CSS, why not talk to the source itself about your problems?