This would definitely agree with what I have been seeing. I was often noticing that KW still had 8 charges left just as it was about to drop off due to time, and thought it odd that I had just engaged 3 mobs with about 40% shield chance and not shielded a single attack. Just this weekend I started noticing the pattern that my KW charges were not dropping when I was fighting single mobs using tech attacks, which I wasn't picking up on previously due to groups of mixed attack type mobs. I hope that is a bug and will get fixed soon.
Kinetic Ward is a bit of a pain to keep reapplying, but it timers up with Force Breach closely enough that I just reapply KW when I reapply Force Breach.
There are two other things that drive me far more crazy...
1. As some have already mentioned, the need to almost stare at my buff bar to watch for PA procs, HS stacks, and keep an eye on my force level constantly so I can manage it in conjuction with expected procs and KW/FB/ST refresh timers. It would be nice if there were some sort of HUD style visual or audio cues to tell me when PA procs or HS stacks or when KW runs out of time/charges so I dont constantly have to watch my frame. Especially when one considers the Kinetic Shadow is a tank, and really needs to be looking at the combat, not at their buff bar and unit frame.
2. The short duration of FB and ST. I feel like I spend half my time reapplying FB/ST/KW. KW being the least bad since it is off the global cooldown, but still an annoying use of force. It seems like I get in maybe a couple DS at most, sometimes only one depending on whether PA procs and if that makes HS fully stacked, and then I have to reapply FB/ST/KW. Of course, that uses up nearly half our force, so by the time all three are applied, I have to do a couple slashes while I wait to get enough force to do DS or Project, which eats another 3 secs off the FB/ST/KW cooldown. So by the time I get back to using a DS with enough left over force to go straight into a PA Project if it procs, I'm already halfway back to having to refresh FB/ST/KW. It would be nice if at least FB/ST were longer duration/cooldown so we didnt spend half our time refreshing them and recovering their force cost.