Showing weakness is never a necessary evil, and to an enemy, only a sin. A BOS member would certainly count as that, but here also is someone who put aside Alex slaughtering his unit--who shot him and could have insisted on finishing him, but was instead wearing his clothes.

Alex barters for peace with truth. He sighs again, body relaxing from the tension that had been present. "...When he's all right, I'll be," he replies. "And I don't know when that'll be."