Chain pull.. is that bad?

[Lollie]

Chain pulling is bad because of reduced resource recovery by 70% while engaged, and contributes no increase in damage efficiency.
The party is still traveling the same distance at the same speed, or even slower then the same speed if you have a tank that is using sprint for pulls properly (not saying you have to just saying you can).
You are also effectively reducing the efficiency of the skill with the greatest diminishing return scale for pack size by 40% (Holy/Gravity) not even factoring in the increased resource cost (doubling it) to even achieve dps on 2 groups (which chain pulling really is, engaging 2 groups individually with reduced recovery time between).

There is no chain bonus for kills in dungeons to my knowledge so a steady flow of kills vs a whole bunch at once makes no difference.