Not sure why people are crying about in KC...my first start was on it (season 7 version) and I loved it ever since. I remember that shortly after that Olympus was the map in rotation and I could not figure it out + kept falling off the map but now I think that is my top 1 and 2 maps in the game.
Current rotation - KC, OLY, BM - I would say is my preferred combo as well.
KC is smaller I guess than the rest yet multi level at the same time quite open and with some tricky rotations. At the same time you can also use a lot of porting / building holding in here, I would even say more than in any other map.
KC overall is the problem for people who can't do either: rotate and engage in the fights in smart way -> getting thirded or shot across the map by snipers.
Add hacking to equation and yes you get very unpleasant experience. Tbh I think current Vantage and AA is already very annoying given first short is concealed now via her Ult and Controller players seem to get so much assist on those shots they hardly ever miss - almost like Ballistic queue.
Overall though I like that you can rotate in KC via basically any direction, rotations can be fast (balloons, Valks ult gets you over almost every wall in not all of them, evac towers), also you can spend significant time in the zone given the map is small and come up with quite unpredictable rotations. Many places to headglitch, imo nice end zones as well.
If you don't like "open" maps ... Olympus imo is much more open not to mention E-district where you can snipe almost across whole map if you really want to (well part within big walls). Also basically half of WE is quite open as well be it end zone on Climatizer side or Lava Siphon, Thermal side is also semi covered.
Long story short - it is not about the map it is about your ability to learn the map, end zones and adjust.
