Do you suppose Lux would ever renounce herself as a Crownguard if she had to?
Given she's now more-or-less a fugitive, don't you think she would renounce herself as a Crownguard in order to protect her family? Or would that not matter and the Crownguards would still be punished for having a mage born into the family? If it's the latter, then that's a clear case of poor laws.
As far as I see it, she hasn't outright renounced herself as a Crownguard yet, even after the events of the comic. Or at least she hasn't done so publicly.