What confuses me most about the Splash Art controversy...
...is the fact that splash art is a very minor aspect of the game when you think about it.
Don't get me wrong I love the splash art. It's a very nice way of giving skins life and a story and I hope they never go away. However the only times you will see splash art on a regular basis are 1) when you select a skin in champ select and 2) during the loading screen. That's it. Once you're in-game the icon is base-art only because your team/opponents need to keep track of it on the minimap (maybe one day they can separate the minimap icon with the player's icon, but until then it's not happening). The in-game model does NOT change with the splash art changes; the only time that happens post-release is usually in reverse order when they change the in-game model and then the splash to resemble it (see: Shen).
Really what Riot should do is allow skin-previews in the client a-la HotS and other modern MOBAs where you can base your purchase on the actual model and not the art. In fact, that would be better in terms of people complaining about the model not being 1:1 due to things like lighting (Sweetheart Annie).
It's one thing to complain about the quality of the splashes in relation to the overall skin. Yes some of them are pretty atrocious for representing the character (Toxic Mundo I'm looking at you) or basic anatomy (base Sivir I'm looking at you now). But when I see complaints over slight details like Ahri's eyes and Janna's skin art (which let's face it all of Janna's design is that of a stereotypical f2p fantasy browser game girl) I wonder how people can allow themselves to get so worked up over something that literally has zero impact once you're in the rift.
Go ahead and leave feedback, negative or otherwise. Just save the pitchforks and torches for the atrocious 3D models that occasionally pop up instead. And shitty merch like that Ahri statue. And the lack of an official model viewer. We have long deserved one of those too.
Thank you.