Maybe if Stunning Strike was a different resource (a number of times = proficiency modifier per rest?), they would have more fun options with Ki.
Although I am of the same mindset as Mistwell, in that the control aspect of the Monk is not strong enough to warranty the gimp it receives in other aspects. Wizards can do amazing control (much better than Monk in my opinion), but they also have the option to do good damage as well as other utilities and buffs.
The Monk can do a lot of things with Ki, and so I think they all should be optional to have the Monk function. That way, a Monk would be able to spend Ki to solve whatever problem arises based on the situation: Stun, do more than average damage, dodge, disengage or use a subclass feature.
If a Monk spends their Ki to improve their damage, they should do more than what a Rogue can do with no resources, not barely meet it.