[2020] Food for thought: There's no reason to balance the game around mid elo.

I think it would be safe to define mid elo as upper Gold all the way to mid Diamond, as a generous statement. That's something like the top 25-30% of players.

If someone is in the top 25-30% players, they're probably not your average casual logging on and having fun without looking at the meta builds playing a couple times a week. What's likely is they're a competitive person and have a better average understanding of the game, and what might be the cause of them losing. If you were to tell a mid elo player "this champion is really strong in platinum but falls off in master", they would probably put the pieces together about what makes that so instead of being completely perplexed and demanding nerfs for the champion.

Why is it that we're balancing the game for anything but low elo/unranked play where the majority of players are and thus we can't have things like 60% winrate Amumu terrorizing the game, and high elo play which represents how the game is meant to be played?