Even if 1 person joins the event ,the count doesn't matter at all . You won't discontinue the Non-pvp event just because very few people are participating , don't you ?
The fewer people join , the easier to warp them with their alien symboled nikcnames. Once you found the event boring due to 4 people joined , so change the system a bit , distribute them and make a match fight like in duel king . Think of how you can put a fun in event which is lack of fun . I mean , try to put as much fun as you can instead of passing by the event.
I cannot separate most of my time in game as i was separating years ago , sometimes browsing forums to be aware of the news ,updates etc.. but once i mind to visit the game i hope to drop some stress in PK BK because the arena is full of buffers that pissing you off but when i do , occasionally i am missing the event because of the late registration , but it is not a problem at all , the problem is that i've to wait another 2 weeks to pariticipate again.