Issue I have with such Backup claims is that if two or more Backups exist in a game on the same side they would steal shots from each other and could clear each other depending on what they use.
Let‘s say AM is alive and you took Charlie’s Cop abilities, he’d try getting them, too, but it would fail. He‘d know what you stole and since it’s a pro Town move you‘d be confirmed because what scums backup a Cop.
That‘s why it feels a bit like a dichotomy to me, but I also think Fuji tries subverting expectations and I think you’re Townie otherwise.