What is riot trying to achieve with this kata nerf?

> Shunpo (E)
AD ratio lowered to 50% from 65%

The problem with kata isnt solved by this "nerf" imo. The most frustrating thing when facing her is that its basically impossible to punish mistakes. At least they hit the right skill...

> Shunpo COOLDOWN: 10 / 9.5 / 9 / 8.5 / 8

Really? a blink ability with fairly long range and decent dmg (no, the nerf wont change that) has a 10-8 second cooldown while the champion has 2 ways (counting her daggers... more like 20) to reduce the cooldown to pretty much 0? How is it possible to think this is ok?

The cd could be 20-16 seconds and it might be ok because its so incredibly easy to reset the cooldown. At least i might be able to kill katarina when she fails everything and tries to run away.