I actually don't understand dev thinking on these changes. I'm thinking they were attempting to "imrpove" these tactics by adding "cooler looking" animations. But unfortunately screwed up the usefulness in the process thereby ultimately destroying there useability (although they were kinda bad to begin with and thus weren't used too often by too many players).
A fix of the bugs (slowness/not being able to hit anything) and a complete review (to make them more popular) would actually be great.