I'm all for speedrunning 50+ dungeons if everyone is on the same page.
For low level dungeons, it's almost always unnecessary, except when you have the odd double BLM composition.
I still remember that Cutter's cry with double NIN and the tank pulling all the things.
When I told him that mass pulling is not really effective since we don't have strong AOEs, someone said NIN do have AOEs.
Yeah, Katon 2 stronk ...