Having endured the last 4 weeks of insufferable 3v3 GAC, I've come to the conclusion that I'd be happy to see the back of ALL 3v3, in all game modes, for good.
The game is ultimately built around 5 man squads, in terms of factions and roles (leader, attackers, support/healer and tank). The developers actively design them this way, and release/promote them as such, with their intended synergies.
Aside from this, however, 3v3 is TEDIOUS. In GAC, you're often facing a wall of unkillable tanks with a fragile offense that was never intended to combat such teams. Instead of building a cohesive unit for offense, with varied roles that work together, you're limiting yourself to a typically tankless/naked set of attackers who must incapacitate or work around the tank without timing out.
In GAC, you have to do this a nauseating 11 times. It's soul destroying.
My dislike for 3v3 extends to ships. Since the game mode was switched from 5v5 to 3v3, fleet battles have becoming the most boring in-game experience by far. There's nothing you can do to shake things up, to try new strategies, to add some variation. With only 3 ships to choose from in the starting lineup, it's just the same cut and paste battles time after time, where RNG plays a far bigger role than in 5v5.
So I'm calling for the end of 3v3, both in squad and in ships. Less is not more in this case, less is just ... less. And the game is weaker for it.