It's always the same debate you find in every team based multiplayer game ever. Premades vs solo players. And while it can offer a small advantage, the things they do together is usually not rocket science most of the time. At least not something that randos can't attempt on their own. DRG/DRK combos? Come on, don't tell me it is hard to find randoms willing to switch to DRG/DRK and follow simple commands if they know about the combo. Duo or trio premades in CC? Again, at best they'll be able to combo LBs more efficiently, else I don't see what they could pull more than what randos can, and they're still screwed by a non compliant team that just play like clowns (suiciding into enemy blobs solo, chasing all across in narnia, not following objectives...).

People grossly overestimate the gap premades bring when they're only partial. And I do feel it's somewhat exacerbated a lot by the fact that the players that generally take the time to form premades and act as teams are usually good players and/or tryhards, and they stand out a lot more because of it, while the random solo player that got lost in FLs their first time with half their pvp skills missing from their hotbars or the casual that is just here to level up their dailies will be feeding on the other end of the spectrum. It's like saying gear or job balance makes or break the deal, but in actuality it's mostly a player skill issue at the deep core of it.