Ya know they did specifically bring up how his split pushing is ridiculous and hint at future zed nerfs, so you really can' complain that much. This is what they say
"That doesn't mean there aren't problems - while Zed's ability to delete squishies with a button press and some smooth moves is going to remain intact, he has so many other additional strengths that seem to push him over the edge. Given his amazing AD stats and his waveclear, should Zed be a top-tier tower-taker? Should he have amazing clean-up when his resources are depleted?"
If we are honest zed hasn't had nearly as many problems some other assassins have had. Remember old Kassadin? The guy who most nearly achieved being literally banned from every single game played? Its not like he doesn't have counter play his ult does take a period of time to do its damage so you have time for healing, abilities that give you invincibility, or stealthing away to avoid some of his other damage. The main issue is how the combination of wave clear, high ad, high attackspeed builds, and a solid escape let you splitpush like a freaking madman while having all the damage any other assassin does. That is also what riot is trying to fix. There is no need to take offense at any statement riot makes.