Actually, MNKs had superior Burst AoE even in ARR (thanks to PB), although their overall AoE was definitely inferior outside of the burst phase.
Now in HW, their AoE is boosted further with the new skills they get but DRGs remained the same, making monks actually overtake dragoons in this regard (and with their flexibility, allows monks to weave between ST and AoE with ease, dragoons need to cut their ST combo in favor of AoE and drop BotD, possibly dropping a lot of ST DPS depending on how long you have left on the CD of BotD). Monks definitely have a higher AoE sustained DPS now.
I will agree that monks have inferior utility overall. Their utility is defensive, but mantra pretty much only makes up for Battle litany, and dragon kick's defensive utility was taken up by DRKs.
However, in terms of ST DPS balance, MNKs have a superior controlled burst than DRGs, the problem with MNK burst is that they lose GL3 at the end of it, so they only use it before a downtime where they cannot maintain GL3, or when they REALLY need the burst. DRGs on the other hand, only have a burst on their opening at around the 9th-10th GCD then their DPS drops off over time. I was fine with the balance BEFORE the changes, because DRGs, although having superior dummy ST DPS, cannot perform their optimal rotation in a raid setting thanks to various mechanics, which impacts dragoons more than it impacts MNKs or NINs. In that sense, MNKs and DRGs pull about equal DPS in an actual raid setting (MNKs probably needed the QoL boosts, but not the QoL AND Damage boosts)
The part i mentioned about mantra in the other thread was mostly just putting it out there. Ultimately mantra is a defensive cooldown, I don't intend to propagate that as a DPS utility.
EDIT: @Aomine
not complaining about having the time to fit DoTs into rotation, i know they are there, the flexibility however, is another issue when target switching, if a target will die in ~25 seconds, MNKs can switch to it and immediately apply DoTs, if DRGs are mid combo, they need to finish their combo in the next 1-3 GCDs before applying the DoT, thats about 2.4-7.2 seconds off the DoT ticks, a DPS loss.