While the maps are special in the sense that initially they were only allowed in the event channel making them special and exciting, after being out for several years every player knows (especially with how frequent dodgeball for example is) what dodgeball looks like, its just another map for him and theres really nothing special about it in the sense that one would be excited to be able to play in the map. To most players that you'd ask about dodgeball for example, the map is so worn out they would be more excited to play in cybersports and superflip.
The map does however have several other purposes besides hosting the event 'Dodgeball' in it. Its currently used for about 10 other events, and also features aspects that a player cannot find in any other map, that could be interesting for purposes like turbo deathmatch, tdm, and testing options for new events (note how some of the test events currently on the test events list are done in dodgeball map and consider that players would be now able to use the map for testing purposes without needing to nag a staff member to make the room for them with specific tags).