Nobody wants to admit that they don’t know how player distribution works!

It is either a placebo or just further proves how bad the matchmaking is.  My lobbies are consistently in the top half of the distribution and my team in the top half of the lobby, but we get obliterated repeatedly and the distribution never changes.

I read it as

The big cure is the distribution of all players.

The gray band is the range of skills in your lobby

The red line is where your team sits in that lobby.