Banning specific skins from competitive play

The point of skins is to show off something you like. It isn't supposed to influence gameplay. I think in instances where it can be proven that a specific skin negatively influences gameplay for the other play it should be disabled in competitive play (ranked, LCS, tournaments, etc.).

Blood moon Shen looks a lot like Zed almost too much. It's enough that the first .5s I think oh shit it's a Zed then register there's no Zed on their team and then proceed to fight as if it's Shen. Nightbringer Yasuo has a really dark color pallet and his abilities are a lot harder to see as another example of what I am talking about.

It's one thing to have super flashy if not over exaggerated particles and abilities like some skin, as it doesn't effect gameplay and actually is more clear than the base skin in some cases. Final Boss Veigar seems to have much more accurate particles and a better synced hit box than his original skin for one example.

I know people like to express their love for their champions with their favorite skins, but I really feel like some skins are getting to the point where we may have to look into doing this to keep things fair from a F2P standpoint. If a skin gives you an advantage it makes P2P almost a necessity in a F2P game with cosmetics.

Edit: apparently a bunch of you are dumb and don't realize that I am refering to reflexes and are assuming I am forgetting the enemy's team comp. The whole point of this is to either change or ban the skins with deceiving effects. Most of the time you aren't going to forget there is a Shen because of his mini map icon. Nor Zed. You are going to screw up because of a .25s window during an engage when 2 similar skins are present because if you take a screenshot of most organized team fights you can barely tell wtf is going on. And then there are deceptive abilities which is where I brought up Nightbringer Yasuo. That have hard to see abilities that often blend in or are harder to see than normal making them harder to dodge. This isn't about forgetting team comps. If you thought that maybe you should learn to read. No where in here did I say anything about forgetting their team.