The product is designed to be knit to the exact shape and size you desire, which offers little to no wastage fabric when prototyping. This helps reduce prototyping and production costs.
Automated knitting does not have any human handling because of its digital format and each prototype will be exactly the same.
Cut and sewn products involve piecework and a lot of human handling to construct the product. This can increase the cost of production and create variation in each prototype.