"KJC is necessary, rather than take it away, we should just give it to every caster."
"That is a bad idea and here is why: *list of valid reasons why changing the entire freaking paradigm of the game so warlocks can keep KJC is a bad idea*"
"Well, uh... Nuh uh, warlocks need KJC to be viable, we should just give it to every caster so we can keep KJC, it takes more skill and totally allows for more diverse encounter mechanics!"
"Oh? How exactly is it more skillful, and how exactly does it make for more diverse encounter mechanics?"
"Um...*deflects the question*. KJC is necessary for warlocks. We should change the way the entire game works because KJC is necessary and there is no other possible alternative to having permanent 100% mobile DPS.
"Sorry, not gonna happen."
"But Guildwars 2 does it!"
"How in the world is that even relevant? You know what? I'm done here."