Good. That means the content is still hard despite people "filling their rosters" with "OP jobs" like DRG, MNK, BLM etc.

Raising the damage of the lower DPS jobs will only widen the selection of "OP jobs" and as you said the content is still hard enough that barely anyone has cleared it.

Basically some jobs are undertuned for current content if despite all these top jobs being "OP" barely anyone has cleared the hardest content. Being truly overpowered would mean that they could faceroll the fights or ignore mechanics because they burn them down too fast.

Unless that is the case it's not an issue of some classes being too powerful but others not being in line with the damage check the raid requires.

As other people pointed out in other threads. If you can't meet the enrage timer with the lower DPS jobs what's the point of nerfing other jobs? So they can't beat the enrage either? Wut?