I agree with Gary.

A locking pin is a great device to use while dis-arming the robot... The weapon can be locked when it is not possible to get to the link.

The new wording would leave a lot of room for abuse... I dont know of any robot that could have its weapon activated without power... Everyones radio gear is electrically powered.

1.5.5
All weapons much incorporate a manual locking device to prevent movement when the robot is not in the arena.

and possibly

Event organisers may request a demonstration of the safety device in a controlled situation.