This would also make me less confident in Scraptrap being a separate suit from Springtrap. Afton wouldn't feel the same power and malevolence that he did as Springtrap if he swapped suits, meanwhile we know that he did.
I love the implications that William using Fredbear to commit the DCI in FNaF 2 may have. With Spring Bonnie, he's more flamboyant and cocky, but he's clearly more careful, stuffing the bodies in the suits so that he isn't caught.