But imagine an Angel AU where your wings are a reflection of your soul. Corruption leading feathers to fall out. Part of Joker’s torture was ripping out chunks of feathers from Jason. When he comes back to life Jason can’t fly anymore so he takes a human host and continues his crusade.
When his family sees him they take the sight of wingless Jason as a sign that he has fallen, that he has become too corrupted. It takes an incident where Jason has to save a member of his family that they realize that he is just keeping his wings hidden because they’re hurt and vulnerable. Wings heal with the soul so it’s a much longer process and Jason has not even begun to get over what happened to him with the Joker.
It’s startling to realize that even with the bad choices Jason makes his soul is still beautifully good and his wings are magnificent, injured or not.