Just restrict group PVP to ranked matches, not that hard a fix, besides, that's where grouping matters anyways. If your people are fully augmented and WH geared, you shouldn't need a pre-made to beat *** or else you suck.
Do you even realize how hard it is to get eight consistent players together? Let alone in the right classes and with decent gear? Most nights we can only get four people, with people coming in and out of the group as they log on and off. Ranked is just unrealistic for most players.
And besides, this is a freaking mmo. The battlegrounds are a team
game. Why the hell shouldn't people be able to group with their friends? For Christsakes, stop crying, make some friends of your own/join a guild that does pvp, and queue the hell up.