Staggering Wounds passive not triggering with Rapid Shot despite “on Hit” wording

The Staggering Wounds passive (“50% chance to Knockback Bleeding enemies on Hit”) does not trigger when using Rapid Shot, even though enemies are clearly bleeding.

Steps to Reproduce:

Allocate Staggering Wounds in the Mercenary passive tree.

Use Rapid Shot with a 50% chance to Bleed gem / modifier.

Hit enemies repeatedly while they are bleeding.

Observe that no knockback occurs.

Expected Behavior:
Since Staggering Wounds specifies “on Hit,” it should apply to any attack that hits a bleeding enemy, including ranged projectile attacks like Rapid Shot.

Actual Behavior:
Knockback never triggers, suggesting the passive only applies to melee-tagged hits internally.