I kinda agree with this.
Monk 129 here, cleared T13 so I guess I have a good experience on monk.

I think Monk needs a little buff, I'd say better dots for instance.

The reasons are the following :
-Monk is not the top ST DPS anymore, it gets outdps'd by ninja, even on a dummy, and even more on T13 with the same gear.
(Monk 130 on a dummy : 630-640 ninja : 660)
-Monk requires positioning to get its max dps, it can't be achieved perfectly on some FCOB fights : example : earthshackers or megaflare on T13 when you might have to miss a few positionals.

Ninja, on top of having a better dps overall, don't have to worry about positionals, allowing it to dps at its maximum capability, i feel it's kinda unfair because the job is not as rewarding as it used to be.

Of course Monk still has a great DPS and utility, but get outperformed by Ninja (even though dk is really useful it's not mandatory at this level)