if you have fewer maps then that will kill off the server, people don't want the same maps over and over again because it gets predictable and boring, if you want the server to be more alive then you need to add more maps, i cant see how having more options makes the server dead. people can nominate and vote the maps they want so even if there are bad maps people wont pick them but they WILL eventually find the lack of variety boring. horrors was one of the maps that people enjoyed as far as i could tell, it was nominated constantly and enjoyed and never crashed once. if any map should be removed it would be a map like undertale, not one of the more popular maps.
ive spoken in chat to alot of people who play deathrun and they say they miss horrors and are "confused and "disappointed" that its gone. please can you add the map back, if it keeps showing bad results then by all means remove it again, but i dont think it would hurt to add more maps to deathrun.