Hello,
at the start of this season I hated the imbalance of the matchmaking. After a while it turned out to not be as dark as it seemed first. Nevertheless, I want to point out that the matchmaking system right now fails a lot when it comes to pairing premades. A group of 4 or 5 people don’t necessarly need to be way better than solo queuers, yet they have advantages. The system at this point seems to just match exactly these large groups of premades vs solos or small duo teams, probably in favour of queue times.
here are some screenshots