That's exactly what happens. In SBMM, stacked teams were only really seen by the slightly above average and above average players, mostly because stacked teams well, have good players. Now that it's CBMM, everyone is getting a small taste of what the lobby balancing and stacked teams were like for the top 40-50% of the playerbase under SBMM. And since it's CBMM, teams are more than likely skewing the lobby balancing to a more severe degree per game than they were under SBMM. It's a mess. I really wish there was a way for the system to differentiate between a true "stack" looking to farm players and just some friends playing. The friends get normal matchmaking while the stacked farmers can go match teams with the same mentality. That'd be great. Mich easier said than done though.