Eh even before the Revamp I knew a lot more light monks than I did dark. An accepted fact would be that dark monks were better dps than light monks but ultimately the light punch and all the light finishers contribute far more too solo play and group play than a little more dps could.
Also I don't think it's the OPs intention to complain about imbalance between pre's as it is he's trying to help create ideas for the Ninja spy 3 which the dev's have already mention was on there mind for the short future.
In regards to the pre, I would be more interested in seeing TOD work with a shortsword than most anything else. Simple fact is the wpn is just not viable on a monk; though making a shortsword build would be flavorful, not being able to use TOD would be downright irresponsible for a dark monk since they don't have much else going for them.