As it stands now just a four player stack can still pretty heavily decide a match. PvP is such that the top four DPS for example can have more effective productivity (damage, total kills, kills on important targets, coordination, disruption, etc.) than all of the rest of that alliance combined, and decide battles pretty fast. I appreciate the notion of trying to have as many people in a larger party able to stick together, but I think letting eight stacks back in is going to ultimately make the game worse for the casual player. I feel four stacks, while they can still be potent, increases the likelihood of separating power (though RNG can still allow pretty stacked teams).

I would have to disagree.