I"m sure you heard the whole Cutscene but I'll explain their logic in case you missed it.
Basically the whole reason why the Commanding Officer allowed it to happened is because he said it would tire out the citizens and make them more complacent to be able to let steam off on said honorary citizens. And further in it's explained by Fordola to her Mother that the Imperials in general still don't see them as "honorary citizens" while the Mother may be able to live a life of comfort her life is still lesser than an Imperial life. This is why she ends up joining because not only does she want to be recognized as an equal by the Imperials, but she also wishes to get revenge over her Father's death.