"I can't reforge any of your armor. I have no idea how it is made originally, and I lack the right materials. The acid damage is also a little too deep in it…" Walker's sorrow for the pile of armor pieces was too great. He knew that he lacked the higher class skills to reforge it all.
"That is not an issue. It is better that you can bring it somewhere that it can be reused instead of being left behind in the wilderness." the angels all felt this way. They knew that Genesis would have someone that could recycle the armor.
Most of the angels also had to keep new injuries covered in bandages. The damaged armors would cut in to their bodies or they would worsen the healing injuries. As much as Alice had wanted to heal them fully, she had to understand why she could not.