In episode s04e09 we see Aunt Lydia looking for a new position for Janine, going over profiles of commanders with clear words written.
On the other hand in the same episode when Naomi visits Sarina Joy she clearly disapproves seeing that Sarina was writing.
And obviously, we saw in previous seasons Sarina was given a drawn itinerary on their official visit to Canada, and she lost a finger as punishment for reading the Bible.
Did the rules regarding women reading change over the course of the series? and if not, how come Aunt Lydia is allowed to read?