Surely the big thing is it replicates the 'draw'? If you work with an expandable baton yet train with a rigid one, there are issues. You will likely always have it in your hand, which isn't the case for real. Note in the demo clip when the officer draws the baton. If he left it much later he would be managing the offender with empty hand techniques. If he was training with a rigid baton the baton might already be in hand and thus a very important part of the training is missed. Knowing when to draw and practising drawing under pressure.
I don't share Hock's dislike for the thigh hit, but then I would adjust it to a kneecap if I felt the offender was hopped up enough a heavy thigh strike wouldn't do the business. I do agree that plenty of people would take the thigh strike and keep fighting, even if not drugged up. But for a low risk law suit proof target, it gets the cop swinging and that is a good thing. Note in the demo clip the first two strikes are to the arm. He strikes the thigh when the offender is on the ground trying to rise and the leg is the closest target.
Just as you should practise deploying all weapons, sidearm, MACE, handcuffs and so on, you need to practise the baton draw so it becomes instinctive and efficient under duress. If this item enhances that practise then it is a good thing, surely? It might not be the be all and end all, but it does have merit.
Redcap