Casuals are the ones who don't have the time to grind anything (crafting, dailies, whatever) to make the credits to cover the 3-10x increase in repair costs they incur doing what they play the game for. Hurts casuals the MOST, not the least.
I also suspect that the money you make from crafting and selling mats on the GTN is about to dry up, if the purpose of this is to be a credit sink and deflationary tool. Less credits in the system mean much lower GTN prices. Market crash!