It was hyperbole. People tend to do better when they're higher than recommended light levels (e.g., at Rise of Iron levels, one phasing War Priest was common - even with first timers, but wasn't at Taken King levels, in my experience). I was only 274 and had no problems taking down the dogs. I also had time to grab ammo on my way back to the safe room. As far as supers, I agree. I wouldn't use hammers or shield, for instance, but Nova bomb is great, as is tickle fingers even if the dog runs away.