In marketing and selling a product to customers, companies tries to target those customers who are not well informed and are not aware about the product or not aware about the terms and condition of the purchase of the product. It is not ethical to target them. This is a form of lying and is not the nest practice and is not called professionalism.
Also without the knowledge about the product, the customer may be at risk by using the product. It can cause any harm than any good to the customers. For example, taking any medicine can have a negative side effects to the person consuming it. This is dangerous and so it should be not allowed to sell a product with out informing them about the product.
First lets define torrent. Torrent roughly means the violent rush of some sort of liquid. In this case, it seems like the wind during a dark night is being compared to that of a raging river. Hopefully this helps.
