Galactic War is a mode where you have prizes on the line. I would like a mode where you can have friendly practice games where nothing is at stake.
Most people can sim the war for the prizes and since being able to, I have found I don't actually play the game as much as I sim everything. I do the arenas for the daily prizes and try to stay in the top 100 for both but it doesn't give me a chance to play around with different teams where nothing is at stake.
While the idea of paying to play longer will always exist for a game like this, if other players are like me and do all the daily challenges and GA and raids and TB/TW, you probably spend 30 min to an hour playing each day. One mode where you can screw around doesn't impact those other investments.