I don't neccessarily agree with you. I'll mention the points here below.
(A) First of all SD/AG pots are not present in shop. That means nobody is using them as is, with them available in stores, it will balance the quick PVP and will make it normal (whilst, maintaining a proper PVP system with balanced classes).
(B) BK pwn everyone times are over. Go on Global and see whether a BK is as overpowered as it is on the private servers. BK can be killed by a MG, you don't see these things on a private server, and I suspect we won't but at least this will balance the game in terms of class aspects.
(C) I can assure you, when AG/SD pots are placed in shops. A BK VS BK duel can take up to 5 minutes, as long as you have a strong and solid opponent, one that knows key aspects to increasing damage, and killing opponent quick. I can demonstrate that if you wish.
In the end, everyone wins, changes are here for the better, now at least the amount of other characters will be balanced out, and PK events may not be strictly BK in the future, because other classes will have a chance to conquer these events.
- Meti