I've read that predators can tear chicken wire easier due to its bigger holes in comparison to hardware cloth, predators can also reach in easy and tear the chickens limbs/parts if the chicken are lying down closer to the wire, day or night.
I would put more ventilations, most of their droppings will accumulate @night and ammonia will build up fast for 6 hens in a small quarter specially if the coop is low ceiling.