The Season of the Lost is the Awoken season, Mara Sov's return to prominence and the setup for The Witch Queen. The armor as memory rather than protection is the season's most considered statement — the Guardian who has been through the Red War and the Taken King and the Curse of Osiris and every seasonal crisis since is not wearing armor because they are afraid of what they face. They are wearing it because they know what they have survived and they know what surviving required. The armor is the record. The armor is the argument that this particular Guardian is still here.