Maybe in the future, the campaign could be complemented by a 5v5 and a 10v10 ladder, in which you cannot use players from other clans. (Pretty much what Toad was organising, but teams must be comprised on clan mates. The 5v5 tourney could have 2-3 teams from the same clan etc.)
That way the campaign can focus on massive battles with grand strategy, alliances, and terrain conquering (in campaign battles), but if clans wanna just slug it out for points they can have a clan match.
Such a ladder would mean KoS could fight AoS and KEEN could fight Dojo without political ramifications.
*edit* just noticed the 6v6 tourney is clan-based. I thought I remembered it being 'team' based.. Oh well, let's just get cracking on that tourney.