This skill is a good way to remove a large number of Conditions at once. It's especially useful for combating disease, since disease often spreads across the entire team.
This skill is a viable option even when you have no points in Protection Prayers, as the condition removal is not dependent upon it. Secondary Monks with extra energy can help with the condition removal burden in this way.
With the advent of Searing Flames, this skill has become useful for combating the area-of-effect burning caused by Searing Flames.