People can debate and talk about wether they use it or do not use it, but bottom line, all orders before Musks tweet, were advertised that this accessory was included with the purchase. For comparison, Apple announced removal of accessories from iPhone before a single order for the model excluding chargers even went on sale, people knew what they were buying. It is false advertisement and a breach of contract to remove something from an order AFTER taking a non refundable deposit, they can remove it, sure, but not from existing orders.