Bladefall of Trarthus not working with Crucible mod

There was a Crucible node that did the following:
15% chance for Firestorm and Bladefall to affect the same area again when they finish



It shows up on the tooltip for Bladefall of Trarthus (30% because two are equiped):



However, it does not affect the skill in any way.

I am guessing that Bladefall of Trarthus is coded such that it doesn't "affect an area", and that's the same reason Spell Cascade Support doesn't support it. However, Spell Cascade does not show up in the tooltip, so the description is accurate about the effect in that case. On the other hand, the Crucible mod shows up in the tooltip, while not applying at all, an inaccuracy.

Options for fixes:
1) Remove the mod from mention in the tooltip.
OR
2) Make the volleys from Bladefall of Trarthus reoccur when used with the Crucible mod.