Alright. I've been talking about this post for a while now, but I haven't been able to actually heal since the mana cost nerfs until about 20 minutes ago. Now I can accurately make this post and try to be as constructive as possible. Feel free to disagree with me, and feel free to try and refute my points. I welcome all healthy discussion.
Please do not turn this into a sky is falling thread, because it isn't, but it's definitely dark right now.
I'm going to start by being a bit emotional for a bit, though. I've never felt more stressed out while healing than I do while playing current mistweaver. I feel like I'm having to play much smarter and harder than any other healer at this point for VERY little reward. I was really excited about the playstyle of monk and really thought it had promise, but that idea seems to be entirely gutted at this point, at least. There is simply not enough utility for me to justify even playing this class at a competitive level. I'm not the only one who feels this way, either. Something has got to give, soon.
Now on to what I'd really like to say about the class as of now.
I managed to three heal heroic Feng without unglyphing mana tea. This proved to me that glyphing mana tea is no longer practical at all. I think unglyphing it would have given me the mana to finish the fight comfortably. (http://www.worldoflogs.com/reports/rt-qegehdt1m8dz7fst/sum/healingDone/?s=12261&e=12581)
This is completely anecdotal, mind you. It is important to note that my guild has been killing Feng for a long while now, so we were able to get away with three healing it. I don't believe that it would be possible for guilds learning it, but it shows that it is possible to play well enough to make MW work after these nerfs.
Now with that little bit out of the way, on to the important stuff.
Mistweaver, when introduced, provided us with a very interesting niche, albeit a powerful one. This was the first class that varied greatly from other classes, in such that there was ALWAYS something to do. Be it healing, DPSing, or whatever it was you had to do at the time. Mistweavers were a very busy spec before the most recent mana change. Monks were sold as a class that were supposed to feel this way, and for the other twos specs, this is absolutely 100% true.
Mistweavers, however, have hit a point where it's safer to be ultra-conservative. I often find myself afraid to cast spells, or even attempt to keep things like Serpent's Seal \ Tiger Power up. I say this because Jab's mana cost has made Jab an unlikely chi generator as it was before. I'm thinking that soothing mist is more effective at generating chi at this point. If you're using soothing mist to generate chi, you might as well just not bother with fistweaving. This has led to a very dull playstyle. It's come down to pressing RM when you can, SCKing if and only if there is massive damage and you can afford it, and mashing chi burst because uplift is just not good for handling large raid damage.
I've actually found myself attempting to find spots out in nowhere to get chi bursts on as many people as possible when spread out because I can still hit more than 12 people (which is the current max for Renewing Mists without bloodlust \ extreme haste levels.) But that's just me.
The majority of this current playstyle is in response to the "kneejerk" mana cost increase. Take note, I'm running over 14,000 spirit with flask and food right now. I have mostly really good gear. I am still finding myself struggling on even bosses we've had on farm forever. I'm still at a loss as to how I'm going to be handling progression on Heroic Empress this week, even if I unglyph mana tea. When !@#$ hits the fan, we do not have the mana to sustain huge periods of burst damage. (Oh wait, loljk I'll probably end up tanking if we switch to three tanks.)
It's doable, but it's hard. In fact, I find that it's much harder for the average player who doesn't play at a top 1% level. If players like myself are struggling, and the forums are in an uproar from a large number of monks finding themselves in the same boat, I feel like it may be a bit TOO hard. I'm all for challenge, but not when it alienates a large amount of the playerbase.
As I've already stated: Mistweavers currently require a massive amount of effort, bring nothing but a few weak CD's to the table, and barely keep up with other classes. There is literally no incentive to bring a mistweaver to a 25man progression raid. I'd go as far as to say that mistweavers will hit the shaman in Cataclysm dilemma of "Oh my god Paragon didn't bring any monks to anything at all ever."