Shouldn't be playing a fighting game just for the unlocks.
You'd think they wouldn't make such a measly amount of character customization so tedious to unlock. I think it speaks to the dev and/or pub not having their head in the right place that they're making it such a chore to make a paltry six colors available. The fact that someone would feel discouraged enough to stop playing after losing their progress to me is telling of some bad design.