I don't believe that someone's average crit is 7.5k at 38. Average on a 1 minute cooldown finisher, maybe.
Even then, as you have 1k5 average crits, I'm suspecting you're Harmonious using Eagle Claw, which means you're increasing your ranger friends damage by ~20%. If you add two more melee DPS to that, you're accumiliting a crazy amout of indirect damage - pretty much like a bard. Besides the point, a ranger has 20-25% critrate, an harmonious monk ~50% critrate, so even there you have a much more reliable finisher chain.
That's beside the fact that monk abilites are so outdated that we're not taking advantage of weapons etc, whereas rangers are lately polished to do just that.

Problem isn't with weapons, it's with the abilities. Monks wont get any real benefits from any other weapon because our abilites are unable to use them

A simple fix such as:
Ashen Hand: Weapon Damage + static amout (scalable naturally). It should be tuned do it's current damage with fists, but would naturally scale better with a big two-hander.
Thousand Fists: Rename to Thousand Strikes. Deal 400% weapon damage, costs 10 endurance and with 10-30 second reuse. It might even be used then, as it's currently just an expensive flying kick with long reuse.
AoE Finishers (name eludes me): This should be, at the very least 200% + static amout. Considering the reuse (2 minutes) compared to the ranger one with 1 minute reuse, 400% damage and chance to strike multiple times, it's a complete joke, the only diffrence between it and our normal AoE's is the endurance costs, and quite frankly, our AoE's aren't worth it for other means than holding agro in a duo/trio.
Advanced Finishers: We shouldn't need to crit our finishers to create the opportunity for an advanced finisher (like other DPS classes can). The need to crit once again puts the spotlight on our natural fists; because if you're not behind the level curve and can easily pick up good fistwraps (or ulaks or another hand-to-hand weapon) - you're going to use natural fists.

The more of our abilites that would actually use weapon damage (and efficently like other DPS, ie with large finishers) the more return we would get from them, and the less we would be tied to our natural fists.

On a side note, with the fixed evasion (I will agree it was over the top) many of our counterattacks needs to be rethought; or even made into normal attacks. At least their endurance costs must be droped to acceptable levels - they are no longer really useable.
Ah, yes on the topic of evasion, how come our dodge ability (100% dodge (or more, pending level) to dodge next attack) has a 15 second reuse, while the ranger eqvivialent (and disciple, but diffrent archetype, so don't really care) is instant reuse?

Looking at DPS value only is a bad measurement.
Considering the extremely low amout of our abilites which actually use weapon damage, you will loose out on virtually anything that isn't a fist weapon. Since itemisation on fist weapons is bad at best at higher level (we get green fist reward for mid-30 quest where all other rewards are yellow).
Since we're pretty much the only DPS class that needs to crit a finisher to create the advanced finisher, again critrate is important to sustain damage.
Zank, the Bladestaff of Ages might look impressive with it's 67.5 DPS, and even more impressive when you get 250 or so displayed as your damage compared to maybe 190 of your fists (at roughly 30, fists scales up fast after), and yet still you deal more damage with your fists.
Of course, if thousands fists would be a 400% weapon damage (and a bit less reuse, and 10 endurance cost like every other finisher should be) you would suddenly actually be able to make use of other weapons. Sad but true.