Seriously Riot?

Before I get those silly "Deal with it comments." Just read. I was COMPLETELY (well not really) ok with them not putting championship riven on sale. I understood it was rare and all that, BUT, it was kinda really mean and painful for all of us dying for the skin to know the only way we're going to be able to get this skin is the pick'em challenge. Its not very likely to get that correct, and I understand that's why its a PRIZE(Still disheartening to know itll ever be rereleased this way..) BUT NOW. YOU PUT EVERY CHAMPIONSHIP SKIN ON SALE EXCEPT RIVEN? I understand kalista, its new, but why should thresh and shyvanna have a right to be rereleased? Like you're literally upsetting about half of your player base i guessing AND keeping yourself from god knows what profit..