A low price due to low demand sometimes happens when the supply cannot be regulated easily. Last year that happened to milk prices due to full storages and collapse of a market segment in russia. A cow cannot easily be shut off temporarily and the demand on beef wasn´t that high either.
In the case of freeze dries goods there could be an extension from niche products to main stream items. Freeze dried goods can be used in convience items like instant soup. If a manufacturer decides to enter a new market segment that may have an effect on per unit costs for other products.
There is also optimizing profit by lowering the price in order to sell more units for a better total profit. That could reach people who would have bought the product for a slightly lower price. That´s why cosmetic products for men are frequently slightly cheaper than compareable products for women .