This DC set has been available for a while now, almost at its midlife. I specifically upgraded a couple weeks ago Biggs from R3 to R5 and gave a zeta to MM lead (and not to mention, spent mats for the reroll) to use it in TW and GAC. There has been no communication about a possible change. This is a bad outlook for a resource management game, to live with the feeling that everything you invest that seems worth it might be changed and nerfed down the road. You could have just let it expire and change it in the future if you ever wanted it to come back. Now I feel that I am owed some recompensation or to have my zeta mats and relics back, because I would have never upgraded them if it wasn't for the DC (which again I repeat, it is not even that it was out for few days, you saw there was a problem and fixed it. It lasted for litterally two months!). I will open an EA ticket, unless some kind of "excuse us" is given. I know it may not be your decision, but this is not how you should handle matter in a game were resources are so fundamental.
@CG_Tusken_Meathead