Well...lets think about this from (what will be) the new PuG PoV. Who has the best Drunkaro?
The warrior who never plays monk and has few skills unlocked? *headshake*
the Paragon who just bought Nightfall and has only started to cap skills? Mmmm...nah...
The Tyrian monk spamming "Blight monk with lvl 20 Drunky lfg!"?
I think this will boil down to a question of whose Drunkaro is better, not whether he can outdo the worst monks. Henchmen already own that title with a massive chasm between their usefulness and a good monk.
Good monks are always hard to find. They're hard to find because their teams survive easily and they breeze through the game more quickly. The same can be said for many professions, however.
Nightfall core characters are going to have a hard time. If you haven't unlocked all those uber skills already you're likely to be in trouble.
Off Topic: Drunkaro was excellent as a BLight, and a few other builds I tried. With proper energy management skills and a spammable Signet of Devotion (I still hate that PoS but BL is turning me around…) he was regularly healing my team with very few energy issues. Thanks to the flag system, pulling was equally easy with no hench agro problems. He did tank, but so do many human castors in pve. The difference between drunkaro and these players was—when I had time to deal with his indiscretions—he accepted orders quickly and started kiting.
In the end, I found it easier to set him up as a Mo/Me, prioritize channeling for his next spell, and let the idiot take damage, spam RoF/Gurdian to his heart's content, and do my thing.
I also
never had a problem with him rezzing in combat. He never carried one
I know: that goes against everything most hardcore PvEers believe about playing this game. But facts are facts: I never had the infamous Alesia/Lina double-rez in the PvE beta.
Back on topic: will good monks have anything to fear from Drunky? Heck no. If anything, good monks will be more sought after because they will be bringing a solid 2 monk backline into every team they play. The definition of a "good" monk may begin to change, however. No longer do you need a good build that you can use. You'll need to know AI weaknesses and create builds that turn them into strengths.