PLD is already doing plenty more than a BRD to have to silence as well. Both are the same other than one being melee and the other not. 30 second CD and off the GCD. MNK is every 6 seconds at the minimum, melee, high TP cost, on the GCD and a severe cost of damage.
This is one of those situations where if you have a MNK doing silences, you would've been better off just switching out to BRD.
