I'm not sure of the point. Visuals are great ideas, and I spent many a happy day doing them in tiny Greek islands and at major EU hubs. In the islands, with old VASIS the sun often made them invisible and useless. My comment was at night on a circle which equals a low height. A visual started at circuit height or higher is no sweat, or should not be. Glide slope guidance at night, for a shortened visual, is a normal requirement for many companies. It would be unlikely for a commercial jet to be landing at an airfield, at night, on a visual circuit, that did not have PAPI as a minimum aid. That would be an 'out in the sticks' airfield of which there are very very few, if any on commercial jet routes.