Why nobody talks about kassadin?

How in the world is he balanced. He is like old , but with less bad match ups, because his only bad match ups are which are critical to him and which are rarely seen at mid. If u want to shut down kassadin entirely from the game u can't even roam. U just go wherever he is and kill him whole game just to not let him get farm and any kills. When u have around 2 lvls or 3 lvls advantage u can feel save, and just win the game. Otherwise on same gold terms, he will outscale just anyone with 3 items.

The funny thing is, whenever u want to shutdown kassadin anytime from the game. U must be prepared for 2v1 lane, his jungler WILL GANK u a lot ,because kassadin is a HYPER CARRY, and he will whine to him that he can carry a game later xD. So if u pick and tries to punish him early, u will be dead by the jungler , u don't have any mobility.

His late game is the most unbalanced and most snowballing in the whole game. There is almost no counter to it, he got his R like every 2s, often zhnoya to avoid critical cc. His mana which should be somehow his weakness is not a weakness. Kassadin is not even running out of mana because every time he press R he kills someone and get some mana back with pressence of mind + He gets free 500 mana from it which is absoletly broken.

Right now he became god tier mid, and has 52,5% winrate plat +, I see him almost every game, played or banned. If my mid first picked ap, and someone have picked kassadin after it, then It's almost gg. If jungler don't punish kassadin and team actually don't wins the game fast I can just ff 20 to don't waste time. He was op before, but he wasn't played that often, so I didn't even care about him, but when u see him everygame right now because some meta sites says he is op, poeple instalock him. It's sad for my eyes, but this is how this game works right now. Everyone wants to win badly, so they just take the best meta picks possible.

-5 ms nerf is like meme. I think that his late game must be tonned down to the ground and instead he should get better early. For example nerfing his R, but giving him actuall cooldown to his E and some shifts to the dmg. I don't know if it would even work. Just nerfing him hard like kayle is not good because he will be unplayable. Kayle after nerfs is weak in my opinion, whenever I see her, She is wrecked to the whole 16 , and after 16 which should be supposed to be godlike, she is still wrecked xD. I don't want that for kassadin.

The idea of Hard late game carries is just bad, It's like U MUST FINISH THE GAME UNTIL 25 minutes or u can surrender, no matter how much u wrecked someone on lane. Even Jax with shojin, nasus, and any champion that is supposed to be "late game" never were such a threat to the team like fresh reworked kayle, and kassadin in late game, It's totally dumb. I don't even mention before nerfs, because well they were broken entire game xD

What are your thoughts about kassadin ?