It’s features while superior imo weren’t friendly to the pro and wannabe pro style players. The differing maps meant certain characters were better or worse depending on map so you needed to be good with a lot more characters, that could be wildly different play styles. Leveling happens as a team, so you can’t stand out as better than others as easily. It also opens up more design options, because there can be characters with vastly different focuses, which makes it harderto call out bad players based on a scoreboard.