You're not 'forced' to do anything. Frontlines is a completely separate entity from wolves' den. You can still pvp there and keep your ranking as desired. I don't see a bother with the gc thing. It's a good way to meet new people and refreshing. It also keeps fcs from basically getting their most hardcore players and destroying others by forming one team and not giving anyone else a chance.

It's square enix's attempt at 'balance'.