Kalista Passive Change

So in the last patch kalista's passive was changed too this:

**Passive - Martial Poise NEEDS MORE FOLLOW-THROUGH Kalista's basic attack wind-up (the time between starting an attack and it firing) now speeds up at 100% of her attack speed ⇒ 66% of her attack speed **

So I do not really get the nerf but how I got is, is that you now only benefit of 66% of your total attack speed. If this it true it means that if you go with for example this build: .

Te attackspeed you would get from this build is 2,18 at lv 18. If she only benefits from 66% of her total attackspeed she will basically only have 1,44 attackspeed at lv 18. So instead of firing 2,18 attacks every second she fires 1,44. I do not know but this nerf to her attack speed seems so huge that it basically destroys her. I think she needs a nerf but she gets nerfed way too hard likes this.

I like to know what your opinions are about this nerf and correct me if I didn't understand the nerf right.