Yes, exactly. It's a test rather than a functional feature. It's useful in a group context for visually checking safety. However, it can be less safe for shorte

Yes, exactly. It's a test rather than a functional feature. It's useful in a group context for visually checking safety. However, it can be less safe for shorter people and children, especially on a thick, worn rope - it can end up as a solid block which accelerates rapidly to face height during a fall.