If the old Riot saw Zed they would be disgusted.
I remember back when Riot actually had a champion power budget and gave champions reasonable weaknesses.
Take Leblanc for example.
Back when she was released she was so overpowered she had a 100 percent ban rate at all elo's and was so bad they had to hotfix her hours after her release and even then she was still pretty much banned all the time.
BUT!
She had a very very clear weakness and that was her laning phase was a struggle for her as in she had difficulty last hitting and clearing waves if they were shoved into her face. Riot very clearly made an obvious weakness that was exploitable. She struggled really hard against teams that focused on keeping their carry safe and if she did poor early game then she did poor all game. if she wanted to farm she had to use her W to help her clear waves and if she was doing that she wasn't harassing and she was using her resource so she couldn't keep doing it AND harassing she had to choose.
Along comes Zed
Riot back then had clear goals and it was clear strengths and weaknesses but Zed has no clear weaknesses and alot of strengths and alot of things going for him.
I mean he has one of the safest laning phases in the game and great wave clear and an excellent level 6 power spike and on top of that he gets free bonus AD just from putting points into his W and ON TOP OF THAT his W if it hits an enemy champion restores energy. Lets add to it he has one of the longest ranged non global dashes in his ability to dash back to his ulti no matter the range.
Seriously Riot i have watched this game come a long way and i have a love hate relationship with it but if there is one thing that i absolutely cannot stand its your stance on Zed and how you think he is healthy because the old you would look at Zed and they would turn away in disgust because Zed goes against literally everything you have ever Zed about balance and yet you sit here and endorse it as okay.
90% dodge
AP yi
random blind chance including turrets
and many other globals
long ass stealth
point n click stun, no indicator, she appeared and 1 shotted you like rengo but she didnt have his ult cd to compensate
old rengar the mejai like assassin
pre nerfs khazix
pre nerfs kassadin (he even stole mana at one point)
dem ratios
solo lane soraka
bot lane of doom
and many many more