Looks Like CWKPQ Isn't Adventurer Exclusive Now

I agree, for one it feels a bit unbalanced. For 2, there was a perfectly cannon reason why every non-adventure simply didn't have the time to even visit Masteria. I think it should be an adventurer only filler in Maple's story.

Aran= Too busy doing his plot and leveling so he can once again combat the forces of evil.
Cygnus Knights: Too busy trying to stop the black wings.
Evan= Haven't played too much of his story, but he probably applies to Arans reason as well.
Dual Blade= I actually don't know about him because the dual blades pretty much made a whole new thief subclass for themselves and became adventurers, so in theory they are free to go.

I haven't done every single quest in existence, but so far I've seen no obligation for an explorer to by driven by the main plot, most party quests only request your help because you're the nearest source of assistance at the time.

But then again under this logic, those classes wouldn't be allowed to do half of the things in Maplestory.

No just no. I think its fair why should we be excluded from a very nice pendant?