People keep talking like if they don’t get one hidden class they will die and the experience will be ruined. Why? I don’t see a reasonable motive behind that, everytime a creator give in for this kind of tantrum the creation suffer later on.
There’s no proof that everyone with hidden classes will be stomping on the rest of the player base, there’s no reason to make them unlimited just because they have to make every experience on the game available to everyone, you can’t have it all, there will be things you could not even possible do in a vast mmo like that.
The whole concept of “everyone should have everything” is harmful, I get that people are afraid to miss some great content and felt kind disapointed by they “normal” character, but why? If you can’t enjoy the game with the “default” classes, another one would not make a difference.
About the fact that only the most hardcore 24/7 players will get them is only viable if hidden classes were build in overpowered, because if don’t, most of the time they will be getting the default one with more advantages like a OP wizard class or something. Why would someone with the goal to beat everyone all the time will waste his time with a weaker class just cause is rare??
I really don’t mind if I never get a single hidden class, despite all my efforts.

i’m pretty sure that will be hard cause when they release the info about it or someone get the info to do it but doesn’t get the required condition 



But the competition doesn’t just end with a permanent winner ( also this will never be a sport). You might lose a castle in ragnarok, or lose an mvp, but there’s always next week.