@Riot: the least you can do is keep dominion in custom games

Your excuse is that you don't want keep balancing the game around multiple game modes. Ok then. Don't. Keep it in custom games. It's well understood that custom games aren't there for balance, but for fun. I have friends that only play dominion. And while I'm not an avid dominion player, I deeply enjoy and prefer hide and seek (which uses crystal scar) over ARAM.

You want to make a hide and seek temporary gamemode, but making one right now would get responses like "oh we already have that, riot is running out of ideas". Instead, you get to nostalgia trip everyone who played it and act all sentimental about it. "Oh we totally feel their pain, so we're making it a temporary game mode. Here's to you guys!"

This is even worse than your sandbox argument: "We want Summoner's Rift to be the ultimate learning place." Except now it's: "We want Summoner's Rift to be the ultimate fun place."

Seriously... And this on the day Xin Zhao is made completly broken OP all over again. Shame on you, Riot!