mgranato, it can happen that way and work if the other parts match.
IMO, if you "carry" the club to the top, you can finish the arm swing and shoulder turn at the same time, BUT the downswing needs to start with the shoulders then holding back against the hip shift. If you "swing" the arms back, then they will definitely (and should) stop after the shoulders stop; and then, on the downswing, the shoulders and hips can start together with the arms holding back against the chest.