Question About Riot's Balancing (Specificly Amplified Damages)

So, there are MANY questions I have regarding Riot's unusual decisions lately, but I have one in particular I would like to ask.

• If Riot wanted to remove damage amp methods such as DFG and Ahri's charm: Why did they not remove Zed's Ult and even ADD it to Fizz who are champions I see people complaining about relatively frequently.

It almost seems like Riot is deliberately trying to mess with the community with their nerf/buff decisions lately, and I am just curious to the reasoning behind a lot of the odd things, but I will settle with this question for now.

PS: I have read that Fizz got nerfs in other areas, and I understand that, but why would they choose to remove amp damage on Ahri and give it to Fizz instead? Why not retweak it on Zed either? I am looking for the reasoning, I will adapt and survive with these changes, I would just like to understand why.