As much as I appreciate Riot looking at Akali...
Her PBE buffs are way off of the mark. This 'buff' simply allows her to run out of energy 3x as fast at max skill ranks. I love the ratio buff, but don't pretend that lowering the cd on a skill that she'll never be able to use effectively because of energy-gating is a buff.
I appreciate you, Riot, for looking at her though, and wish you luck in determining the best buffs for her.