Hmm. Maybe folks aren't looking at this in the right way.
If she had truly repented, then she would go to eternal reward in Pelor's domain - and it's better for her, because there is no longer any chance that she will backslide to her evil ways (and lose her shot at redemption).
If she was lying, then she would go to eternal punishment in whatever place is reserved for people who break their vows.
Either way, justice is served.
As I recall, this reasoning was used in a lot of "by the sword" conversions - which happened at around the same time period that people were whacking each other over the head with bits of sharpened metal.
So, out of character for a modern person? Sure. For a neo-medieval person? A lot less so.
J