Why the mobs in KS look to be farmed.
1) You have a revolving daily q (There is a daily q on Xavier, which can be done once a day).
2) After killing Regin, you can re-inst. You don't get the debuff that prevents entry. (Dl is an ini that you can do once a day ).
3) Regin doesn't give a special item to the artifact.
4) You can transform weaker materials into better (like cenedril).
Why WB doesn't look to be farmed.
1) You get the debuff that prevents entry.
I guess it's easy to see the difference.
if the KS was supposed to look different, it's hard to catch. Given points may mislead players. Therefore, I believe that it is not the fault of the players.