Sadly it's not a bug. It's unfathomably poor game design. Imagine me as a Platinum player having to play in a game with a quarter of the teams triple Pred-stacked. That's three ranks above me. It would be the same as me as a Platinum player being placed into a game packed mostly with Bronze players. What a joke.
Not to mention the fact that NOOOOOOTHING is being done about the rampant cheating problem. It is common knowledge that 90% or more of Predators cheat.
About one out of every three games I play is ruined because of poor management of rank-matchmaking, exacerbated by the complete neglect of all-pervasive cheating that has absolutely plagued the game as of late.