There is a time and place for point shooting and for sighted shooting. It just depends on the circumstances. At bad breath distances you probably won't have time to aim and you may even have to shoot from retention. To discount either method of shooting is foolish as both methods have a place. Taking the time to learn and practice both methods well make you a well rounded and more prepared shooter and add one skill that may help you out.
As for night sights I think they are important. Just my experiences from camping shooting critters getting into camp I found a flashlight doesn't give enough light to see my sights. I could see my target but not the sights very well. Only after night sights was I able to see my sights.