Indeed it's all relative, also the spread of people in each bracket depends, I once had an invo who played just like a pro, we started calling him dendi, he was amazing, he had amazing map awareness, he saw absolutely everything, any person low on health any corner of the map WHILE absolutely destroying mid, his sunstrike was there to catch and he landed ALL of them, his prediction was something out of this world, he would predict our stuns where they land and how enemy hero end up like you saw 5secodns into the future, his build, map reaction, positioning all was absolutely excellent, out of 1500 games I had I'd say he was the best player I have come across and he was, wait for it, in ~3k mmr. Explain that to me >_>
I was queued with Anuraj, sorry.