lol I'm sorry that you worked so hard to get something the hard way instead of having the chance to have gotten it easier (because, let's face it, if you had the chance you would've gotten it right before raf shut down) but , and stay with me here, I know it sucks but quite frankly, stuff like that happens. I also never complained about this being Riot's fault, or anyone's fault for that matter, I just want another shot at getting the skin. I only suggested the limited time sale of the skin since it would still get Riot compensation for their great work, but also as an alternative way to get the skin as opposed to creating a whole new system to reward you with, while I do feel it's a crappy way to get it but w/e. Nobody's crying here, it's just a suggestion which I really hope gets at least some thought of, and it already has been thought of, as they said they're "working on plans to release them (Grey and Urf) sometime later", though it's "not set in stone yet".
Now, IF they were to release another method to obtain the skin, similar to how refer-a-friend worked, I honestly don't see any reason why there should be particle differences like Championship Riven (unless they're as subtle as that one, really it's just my opinion I'd just love to have the skin as is) since I'll just have to go ahead and work for it, maybe not as hard or exactly the same way you did, but I still earned the skin. I honestly think that the special splash border is fine, because it still shows that you got the old school one, without taking away from the original concept. Also, there's the fact that "back in your day", that skin was kinda boring since it was just a pallet swap of the classic skin, and now it's pretty much the best out of the bunch and is a much better incentive to get people who don't have it to get involved with whatever Riot plans on doing, at least for me it is.
I had my chance to get it and I didn't. Now I do want to do it, and Riot can exploit my interests in any way they want. So ye, srry..