With better gear, Statics are now slowly letting Paladins back into their raid groups and some are even experimenting with them in A4 Savage after hitting that wall. Monks and Astrologians not so much.

Statics have no reason to take a monk into A1S-A3S over a Dragoon or a Ninja. Dragoons on average deal more overall damage with equal gear, has the piercing debuffs for your Bards or Machinist and and boost your raid's overall DPS with Battle Litany. Ninjas have their Trick Attacks and Slashing Debuff (if you're Warrior is main tanking) for themselves and all their tanks and other raid utility like enmity control. Dark Knights makes it so you know longer need a Monk for Dragon Kick anymore. Besides potentially being Top 3 DPS when played correctly, Monks don't really bring anything special to the raid group. No one even gives an iota to Mantra. It's not like the Monk is AST bad, it's why take that Job when you have two others Jobs that fulfills the same role but does a lot more?