A. Raceways and cable sheaths must be mechanically continuous between boxes, cabinets, and fittings [300.12]. Exception No. 1: Short sections of raceways used to provide support or protection of cable ...

All it takes is a kink in the cable, somebody running over it with their office chair, or a poor crimping job on one end (like leaving way too much wire untwisted) to make the cable not work. I'd ...