It's actually the other way around.
It's:
1 Make a duo with Balathan, get destroyed because Malarick has formed a 12man JUST for me and Bala.
2 Make a 6man with 2 minis to fight Malaricks 12man. Destroy him entirely.
3 [OOC] Malarick: 12/24 need 4 WLs 4 Defilers
4 Realise that instead of disbanding, I can just get more healers and absolutely destroy him.
This is no longer possible, if it was, yes I'd still use it to fight the zergs. The whole point is no matter what I do or do NOT do, the zergs come. Will I go out of my way to form a 6man for solers? No. Will I go out of my way to FIND soloers when I've made a 6man to fight a craid? No. Will I, however, kill a solo we come across when searching for the craid? Sure why shouldn't I? They'll do exactly the same to me. Until there's incentive not to, why should any? There's no honour... No mutual respect lol. The game is long past that now.