I absolutely love this map when I'm playing at night while very few people are on. It is fun to be able to kill someone but get away just by turning a corner. Though it is a VERY dark map, I would hate to see it go. -1 for that suggestion.
A suggestion that might make it more bearable, don't know how well the map decompiles however: Have a way to turn the lights on and off. Either via physical light switch or t button, it would make it that much more bearable if it's a mainstay, perhaps forcing traitors 30 second time lapses to do their damage before the lights come back on. You can't kill what does not live