Technically the Electrocute change is NOT a Nerf. It's a Buff that favors people who have skill rotations every 20 seconds or so. Which..... includes most assassins.
It means Zed might lose some 35-40 damage on an execute early game, so that's something to plan for, but he has skills up often enough he can well make up for it with having more electrocute procs. After all..... GOOD zeds don't usually kill with R. They W in a shadow from a relatively short range (bush/obscured wall), double Q, and E, for a LOT of their kills. Ults are more or less priority targets with mid range HP or sustain.
You might as well start calling Electrocute what it is now; Thunderlord's Decree....... which worked fine for 3 seasons in carrying assassins.
(This is an insane buff on Talon, because now he can Electrocute far more often, and he's always got a target near him he can wall jump and Q > Youmuu's > Noxian Diplomacy to kill without his ult due to the bleed, and now half the time, Electrocute WON'T Be down)