I don’t really understand the point of Aatrox’s toggle wings

You can see the change of Kai’Sa’s visor/helm since it’s part of her abilities. You can see the change on Neon Strike Vi sunnies and Night Hunter’s Rengar as well.

With Aatrox’s wing, it’s you can barely see the change. And there’s no animation for it. It’s just appears. Why didn’t they just remove or leave it on, rather than toggle it. It’s such an unnoticeable change too. Even Neon Strike Vi’s sunnies you can tell the change.