Through some testing I noticed that Warpath only activates Healing Hands once through the talent “Cleric’s Hammer”, which causes Healing Hands to trigger on melee hits.
But warpath only triggers it once, while every hit is a melee hit, and a move like Multistrike does trigger it on every hit.
Edit:
I forgot some information and only realised when I woke up after initially writing this post at 1am.
I mostly noticed this behaviour due to having the sword “Palarus’s Sacred Light”, which has as one of it’s effects “x% chance to cast smite on Melee hit (up to 3 times per second)”
Which is similar to the effect of the “Cleric’s Hammer” talent which says:
“Healing hands chance on Melee hit: 100%”
Both are on melee hit, but both act different with Warpath.
I also checked if it only was the talent “Winds of Justice” in the warpath tree that caused smite to appear, but even with that talent unlearned, the sword still triggers the melee effect.