Literally every aspect of Fiora has been nerfed.
There is zero reason for people to complain now. Her passive has been nerfed late game and early game and her E's AS and its slow have been changed, so it hurts both full damage Fiora and any utility she brings. Add that to the massive cd changes to W and the ult changes a bit back. There is nothing left to complain about, everything has been nerfed.