The point we trying to make is DF does not setup required jobs for optimal setup to down the fights. A3s/A4s requires double melee, 1 Whm, 1 Sch/Ast, 1 Brd/Mch (Yes you have must have this Job), Caster, Warrior/Drk or Warrior/Pld, 2 Drg/Mnk/Nin. There's no denying it, nor trying to find other ways. It's the only setups that stand in a chance in making the checks.
Melee DPS Clock 1200-1500
Casters Clock 1100-1400
Ranged Clock 900-1200
Tank Clock 700-900
This is to say in A3s/A4s you should be doing. In DF, 95%+ randoms that enter it do not make the optimal level of what the job can do in basically any endgame content. A lot of people would be slaughtering each other by arguments for sucking on DPS, causing a massive outrage for coming in A3s/A4s and wasting peoples time.
This is the problem of why it's a bad idea.