Galactic conquest completely locked out of max rewards

Shards for Mando Beskar ship (which can only be bought in GC) and the very occassional stimpacks, but the most are of course Mando ship and Ashoka, guess Ashoka is 550 or so and then you quickly go through all your reserves. It still doesn't seem logic that you would need to pay credits to remove mods, they are clearly blocking me from my rewards and thus it is still extremely bad game design any way you look at it.