Dota2 developers, Valve recently fixed a big problem for the esports scene by releasing 7.07. The new release revitalised the scene with new metas and new heroes. There have been new talents, new items and new heroes all of which contribute to a huge shift in the meta. Ofcourse the matchmaking system still has remained the same and it definitely seems to be broken somewhat right now.
There have been increasing demands about a new system wherein the matchmaking can be really fair. Even professional players have joined the chorus in demanding a new and better matchmaking system