I was thinking the same thing, especially since the LW arena caps both rise in increments.
I like both the big and small maps depending on my mood, and how much time i feel like logging in.
With the small maps it's easier to spot what's going on, on all fronts, and easier to find a fight.
With the big maps, you can still pretty much find a fight, but sometimes the fronts will rotate around and you have to zoom out and look for the dars.
I have noticed alot more NOE missions with the big maps though.