1. Well, if anything SE should make note and get rid of the GC requirement. Then this issue wouldn't occur because the team you could be on would be random!
2. After playing many games that have PvP you can never "prevent" premades effectively. By trying to get rid of premades you would be preventing people from playing with friends.
3. We've had some moments were we got countered well (some losses involved), if anything people should kind of know the strat by now and be working towards countering it.