Well I've never held a very high opinion of squads who rely on Galaxies. It's not as extreme a difference as it was in PS1, but the core still remains true: 12 players in a Galaxy are dramatically less of a threat than 12 players in combat vehicles (air especially.) So while I'd admit you will be able to shut down the weaker players on an empire, I'm not convinced whether that's going to be a better way to spend your time than working on the biggest threats from that empire. My hunch is the bigger threats will be a better use of your time. I'm not absolutely certain of that, but it's certainly what I focus on when I play.