Manon and Griffey are pretty important bosses and the fact that people keep killing them for only the NX reward is quite frustrating. It's used for things like 4th job and the annoying genesis skill. I've been killing the blue kents changing channel to channel and couldn't find a Manon which made getting genesis hard. If people do constantly kill them I think I'll never get the Genesis skillbook. What I'm suggesting is that the bosses Manon and Griffey no longer drop NX this would greatly reduce the chances of them being constantly being hunted immediately after a reset.
Most people don't hunt these bosses for the NX drop. Mostly for the mastery books they drop. The NX is a nice bonus Sent from my iPhone using Tapatalk