The maps getting smaller is probably my least favorite thing about GA - so many maps like Theed, Kashyyyk and Tatooine are great until their latter phases where you're funneled into one room/area to die repeatedly to a hail of grenades and explosive sentries. I'm really glad to hear that's something the team has consciously moved away from, even though this was clear from the way CS has been developed.
Is it too early to ask if lessons have been learned from the reception/execution of CS?
Many lessons. As this is a live service, we plan to execute on said learnings across the entire game. It's never too late for anything.