no one knows how someone is redeemed
Yeah my point is the fucking angels really should know that.
But the funniest bit about the "courtroom" scene and that whole scenario was that Charlie chose to, as her prime example, use a dude whose soul does not fucking belong to him and not a single eyebrow was raised about it. From throwaway lines we get elsewhere in the season, it's sensible to suggest that most of Hell's populace is under soul-binding contracts, which should make Charlie's entire endeavour fucking pointless, or, rather, switch her focus towards some sort of revolution within Hell, turning the plot away from "angels are bad and we should unite to fight them" stuff.