Magnetic rotary position sensor on a BLDC/PMSM : Mechanical vs Electrical Degrees
You are correct.  Here is a way to think of it:
You have 14 magnets with alternating polarities.  If you start with a magnet with the north pole starting up, and rotate, after one-seventh of a turn, another magnet will be in the same position with the north pole pointing up.  All of the other north and south poles will also be in the same position as before.  The motor phase current at this position must be the same as it was when the previous north pole had passed.  Therefore, the motor most go through its complete phasing seven times per revolution.