While I do admit her background is similar (ish- since trashta wasn't abused and was loved by the household son), that is where I see the similarities end.
Our fl is not entering the scene to be a home wrecker. She is the first and only wife. She also is very opposed to ever being in a situation like trashta willing places herself due to the death and treatment of her mother. I also don’t think the the jury is still out on where the ml will continue to keep her from her duties. She can’t read, and they literally just got married. She’s going to need some time to have the chance to learn. I would argue that she fulfills her main duty quite well already- which is granting humanity and love to the ml.
You do have an interesting perspective though, even though I don’t entirely agree.
i feel like if sovieshu and rashta from remarried empress has a spinoff from their pov, this ML and FL is literally the splitting image of them. FL is saved from exploitative, abusive household, doesnt know court etiquette, is meek, still recovering from the trauma she was saved from, and dont know better about aristocratic hierarchy (in short, doesnt know her place), while ML uses everything in his power to keep her from actually performing duties and engage in court in the pretense of protecting/keeping her for himself only. i understand the empress, this might have been quite the scandal to have a legitimate wife whose job is to only look pretty and sate a goblin king.
also makes you appreciate authors and writers more to put things on perspective where you can root for 1 but absolutely despise the other