Lowbie PvP is flooded with traders and traders only. (almost).
The amount they're able to drain is incredible.
With mochams, and pre-draining mobs, a 15 trader or less (whatever) can debuff someone for numbers like -125 and -136. That's -266 right there. That's more than some/most appropriately ql'ed weapon requirements for similarly leveled professions.
So within say 1s (cast time on the first drain) it's impossible to kill someone if they have a heal over time. After another 6s (7s later) you can completely remove someones ability to do damage. Their weapon is now 0% effective.
This should have been addressed YEARS ago. This is a balance discussion. How did it even slip by after the first few months (or years) that lowbie PvP was completely and utterly dominated by a single profession.
If this is balance. You are provably wrong.