Most brands at the high end of the racing market focus heavily on weight, which often results in brittle products. This angle is only suitable for lightweight cyclists or those who have plenty of money to spend replacing equipment each seasion. TUFF has an different focus on durability and stiffness improving their appeal to the entire market.
https://docs.google.com/document/d/1znWWVf2kQ0WTMRDTQ-nMT1hBm5R-b_w-svBQuPinZuY/edit