Why are some champions allowed to just dominate while others have been in a bad spot for a while?

It is always annoying to see the same champions who are super strong and/or very weak be left in those states patch after patch without much noticeable effort being put towards fixing their issues. Sure, once in a few patches, they may receive a slight buff or nerf, but that almost always does not fix the part that is the issue and usually is just a power shift or a slight numbers change. Things that mostly go unnoticed when in game.

Champions like (post rework) and have been strong for a while now. And while occasionally the meta will force them to take a somewhat back seat behind that meta's broken champions, they usually are always good into any situation. Yet they never receive any significant nerf or power shift that directly affects the issue. For example, Yasuo had recently gotten his Q's hold timer reduced by 4 seconds (10->6). That is great and all, but that had nothing to do with what made him strong. His W and passive (both parts) are what needs to be looked at. He has his ban rate so high because of these parts, not how long his Q can be held.

Then on the other side, we have champions like and , who just feel shitty to play as because they have gotten so many tweaks, power shifts, and nerfs that their is no real left reason to pick them over any other champion. And yet, if they ever receive a buff, it is not where they need it. For example, Camille got recently buffed on her Q's second proc's damage (this is actually just a revert of an earlier nerf) and a few seconds off of her passive's CD. While that is good an all, it is not what she needed to get. She needed something to up her early game survivability rate. Not her damage. A simple revert of her latest W nerf which removed most of the targets she could heal from, would have likely been enough.

The other issue is that it seems that RIOT just looks for the meta to change, and hopes that said champions get corrected because of it. That is ok an all as a temporary relief to buy some time in order to work on fixing said issues, but it does not actually change the fact that they still are in need of fixing. It is like throwing them under the rug to hide them for later hoping no one will notice that they still have issues. These META shift distractions do not actually address the issues, they just take the focus off of them for a time. You should never fix a problem with A, by making B so massive of a problem, that the problem with A seems like nothing. This is why we have power creep, which is more or less universally hated.