Coming from a game full of restrictive animations, I suppose I never questioned it even as an annoyance.
I'm not sure they would be able to fix it though without causing more problems for MCH and perhaps other classes.. they did sort out ninja and blm procs which changed how every class got their procs.

I hope it gets resolved nevertheless so that hiccups like this can't happen to players who rightfully did activate their abilities..it throws your whole cooldown sync off otherwise.
It's just that from learning the ideal opener and rotation in HW has meant I'm subconsciously aware of which skills can't be double weaved and need some extra space before and after other skills.