Rly its hilarious, we allready have a yull thread...no need to make another one.
Regarding higher prices...well, you do log 3 accounts for free. You dont have to pay like in other regions.
Now, to answer your question...if you take a look at ranking in first 100 ppl on server you will find 90% yulls and feohs.
Do you consider this a problem? I do.
What corean devs(yes, not NcWest) did is to nerf...is what they do...
A real good balance in my eyes would be to eliminate any posibility for AOE/Party designed toons to play solo, It can be done easy by increasing mp consumption x10 or as much as needed to do not use skills more then 2 min. Doing that will force Yulls/Feohs to play in full party, as should be, with tank/Dread/Healer/ISS and the balance with exp will be restored a bit. This is the only way for other classes, like evi since you mentioned it or daggers or tyrrs or wynns, to have a fair chance to be in top100.
So you see, a small nerf for only 2 skills is not near enough! Yulls and Feohs need much more nerf to actually matter.
Ps: if you think yulls are so nerf and unplayeble just be patient and in few months you will be able to change your main class with stone of destiny.