Warpriests with Touch of God skill don't use it

I wish I could say I've done thorough testing, but after finding out a merc can roll the skill and wanting to try it, I spent 4 hours running through maps until I finally encountered a Warpriest with the Touch of God skill... I encountered 6 in total including this one with the attack.

My Warpriest has:
Holy Relic
Smite
Dominating Blow
Touch of God
Flame Dash
Consecrated Path

As far as I can tell, the mercenary only ever uses Holy Relic, Smite, and Dominating Blow. I've never seen him cast Flame Dash or use Consecrated Path, but more importantly, I've never seen him create the big blue rune the Doryani's Touch skill has when used by players.

I've equipped the merc with Plume of Pursuit to nerf his damage, a white weapon from the act 1 vendor, Southbound so he's unlikely to kill anything, and The Primordial Chain so he cannot summon his minions (because it was hard to tell what's going on with the holy relic and sentinels while testing).

The mercenary does occasionally stop to do some kind of emote (making the 'sign of the cross'? idk), but I have no idea what that is or why it happens.

If I unequip the mercenary's weapon, they will follow me around in the zone up until they try to attack something. It seems like as soon as the merc tries to attack an enemy, they get stuck running in place. I can use the recall ability to bring them to my position, but they'll still be frozen at their new location running in place.

He does use Consecrated Path, but all of the str/int mercs are bugged and can't create consecrated ground, so it's missing its primary utility

super janky merc, it's too bad cuz he'd be decent if all his stuff actually worked