Hello,
I think that Daily quest mob should give the right amount of mob if killed at the same time, especially on train.
As WL is a pain do the daily quest since i cannot use my char in the proper way. Even if i try to shoot one skill and then finish mob 1b1 i always skip some QI.
Daily are usefull both for daily coin and bracialet duty, but especially from 51+ it cannot takes 2h+ a day for some class, considering also that all the daily spot are full of people and you need to contest every mob.
Adding the right amount of QI per mob would decrease the time that daily quest takes.