At the amounts you should be using, I don't think honey would have enough anti-bacterial strength to affect the soil biology much. It's like chlorine/chloramine in tap water. It's present at levels to keep water sanitary within a closed system. It's not enough to disinfect a wall of dirt. A pinch (1/16 tsp/gal) of sugar a few hours before mixing will encourage microbial action to reduce that effect.
I use sugar. Sometimes a 1/4 tsp molasses instead. I thin that's just my superstitiousness. I don't think there's much difference between the two. The latter has minerals. But, at the quantities we should be using, it can't add much compared to what a plant needs and is supplied through the soil and nutrients.
It's just to feed the soil biology, as far as I can tell.
I like how @saiyaneye is thinking outside the box. Using rooting hormone as a feeding supplement might not be good, but I admire the creativity (compared to following a boutique, proprietary schedule).
