I've been on it twice and both times did not have a scare actor in the queue waiting in the shadows. Once it was during the soft openings and another time was relatively recently during the morning. Although, knowing that someone can be just about anywhere (as they have far too many hiding areas), still gives me anxiety as you never know if it will happen, or not.
I personally do not see the reasoning for the dark theme in the queue, or scare actors, as the ride itself isn't all that terrifying, nor do I think is trying to be that way. While it's trying to be a "thrill" ride, the ride itself isn't all that too intense as a whole. The theme in the queue as a whole is pretty dark. There were skulls in Dueling Dragons (now Dragon Challenge), but it's a whole other thing when you literally see spears going through human skeleton along with other gory imagery. Just seems too much considering how many children probably go onto that ride.