Meiyo,
I play drunken on Live and I tank / off tank for my guild groups quite regularly so I hear what you are saying. The original plan was to make them targetable and let you pile hate on to your defensive target
and force aggro on to your defensive target. This would allow the drunken monk to effectively control aggro while not being the center of attention.
While talking about it we realized that it was greifable, and rendered the aggro abilities of all other classes obsolete with the presence of 1 drunken monk in a raid you cement aggro. While I want us to get our due one of the last things I wanted to do was put in an ability that breaks the game (It could be fun for the PVP server to sic that 5 dotter your enemy for 5 attacks

).
In the end I really wanted to slightly enhance our tanking abilities as it aint broke why "fix" it. The ability is enhanced and not "Fixed". I dont think we are keeping score with what gets "Fixed" so dont worry about that.
I am still playing around with the new Staggering Punch and I am still on the fence with it. 12 sec reuse is pretty steep. and only prevents 1 cast but the mob pretty much starts casting the same spell anyway. (Secret of Ice may have more utility) On the other hand it does crit a whole hell of a lot (almost considered a jin free spinning fists) I'd like more monks to test it and get thier impression as there time to tweak it prior to it going live.
Given they are moving errant strikes to 5 mins reuse timer, Drunken will still be able to deliver the largest DPS spike in the game every 3 mis or so.
I'll have to look through my notes but I thought there was something about slap hands taking advantage of STR and lasting longer. Knowing me I just neglaected to post it.
Talisker and I took a hard look at pretty much every skill in the monks aresnal and looked over the message boards / bug lists /feed back from you guys to effect these changes.
I am starting to ramble on, and I have a deadline I need to get back to.... DOH!!!! I'll check back on this later
~QTM