I did address it, throughout this posts I have noted the monk's either lesser AC and/or HP, which he has traded in for much greater damage than the fighter. That's the niche, the monk at low levels is a glass cannon, but its a cannon nonetheless.Yes, I was going with averages. On average, the monk using flurry can do very good damage at low levels. They can almost keep up with a raging barbarian, even. For a couple rounds.
But my post was actually focused on survivability, which you don’t address.
However, since you mention the barbarian lets bring them into the party as well and see how our 1st level barb does in this orc scenario.
The barb does have a consumable resource at 1st level unlike the monk or fighter. However, at 2 per day and with the new 10 minute limit I think its reasonable to use rage for most 1st level fights, so we shall here.
The barbarian has a 16 str, 16 con, and 12 dex we will say. While they get unarmored defense I think this barb will go for scale mail at 1st level for the best bang for the buck of 15 AC. Since the focus was on their damage we will go two-handed over a shield for this example.
AC: 15
HP: 15 (effectively 30 HP if we assume rage is fully useful in the fight).
Monk HP: 9
Attack: Greatsword +5, 2d6 + 5 damage (3 damage on a miss).
So our damage against the orc is.
12 * .6 + 19 * .05 + 3 * .35 = 7.2 + .95 + 1.05 = 9.2
Our Monk does: 14.95
For context over 4 rounds of combat the monk will kill 3.98 orcs, the barbarian will kill 2.45
Our monk has +1 AC and does 62.5% more damage than a Barb using its limited resource for the day. Our barb has 233% more hitpoints.
So again our glass cannon motiff holds up. The barbarian is the ultimate in hp survivability, but the monk does significantly more damage (it should also be noted that the monk has vex on their handaxe and so will get in a few more advantages at this level as well, but it only applies to the 1d4 damage so not reaaally worth the calculation right now).