There are only two possibilities:
1. The internal code compares voltage to a cutoff voltage setpoint that is too low.
2. When it sees the voltage below the cutoff voltage setpoint, it doesn't actually cut off throttle in a way that the driver notices.
When someone is intent on excelling in an otherwise laudable manner, does he not desire to inflict pain on others by means of his exalted status and enjoy the envy he arouses? Is there not an anticipated delight in an artist's ability to defeat his artistic rivals, which heightens his euphoria in creation?