If this game was stricter and Final Coil wasn't so out geared at this point, I'd say those groups have a point. But this isn't the game we play, so those groups are pants on head stupid. Every DPS is fine for progression, especially if you're i120+. You don't even need DK/Mantra anymore, so your slot shouldn't be filled with a MNK because "We need DK!". If I were recruiting for a static at this point, or even just for a turn, I'd take any 2 melee DPS I could find.