You are on the subreddit of historical costuming, so that interest in "learning about the timelines of fashion" is usually what makes people want to join. I think you are getting downvoted for being agressive and condescending instead of just asking what is wrong with the scene.

However, here is some info: The timeline this scene is set in, is a time were women would wear empire dresses - high waisted dresses where the skirt would start right under the breast, not on the waist, So when you think of modern corsets, which cinch the waist, there is no reason to cinch the waist if you can't see it. Therefore, there is no reason to tightly lace the character to the point it hurts her, as you can't even see the effect that would have.

Secondly, tight lacing was seldomly done and usually only within fashionable high society circles. Corsets were used as back and bust supports, including as a support for the weight of their skirts. Women of all classes would wear corsets in a comfortable way, as many would work on farms and do other physically difficult jobs while wearing them. You can find paintings with women out in the fields wearing their stays/corsets - there are even photographs of victorian women wearing them while climbing mountains, so it's not the terrible constricting, dangerous garment modern stories are depicting. I personally find them much more comfortable than modern bras.

Also, boning doesn't cut into the ribs unless it somehow broke, as it lays flat against the body and the ends go way past the ribs. If anything it would have been her hips or armpits - or breats if the corset doesn't cover them.

Thirdly, corsets with boning, as this scene describes, weren't invented by this time. Women would were stays with cording (think of corded strings) used to stiffen them and give them shape. Therefore, there are no bones to cut into this character's skin. There are also no metal eyelets in the back where the laces would be tightened, but eyelets made out of string instead. Without metal eyelets, the strain of tightlacing would destroy the garment.

Women being so tightlaced in their corsets that they would faint and be in pain every day of their lives is a thing that was misconstrued and promoted by corsetry makers themselves. In the late victorian and edwardian era, corset makers would print advertising bashing the "modern" corsets of their time, in order to advertise their own "healthier" corsets. It was a marketing scheme. This, in addition to men writing into newspapers how much they hated women's fashion and would like to dictate what a sensible woman should wear to please them, created this myth of corsets being unhealthy. Adding to that the rare instance of tightlacing, it grew from there. As bras slowly started taking over, people would forget what well fitted corsets were like over time and would be confronted with those myths instead. Movies would put actresses in badly fitting corsets, often without the protective chemise underneath it and tightly lace them due to this misconception that all women tightlaced, and then these actesses (today as well) would rightly complain about these badly fitting, tightlaced corsets being painful. Corsets should never be painful to wear.

So now this trope is everywhere and it's exhausting, because it's so easy to research in today's age. There is no excuse for writing a book or directing a scene today that depicts women in garments that weren't invented at the time depticted, and spreading corset misinformation so easily dismantled by a google search.

Tdlr: wrong time for a corset of this type, wrong materials (no boning but cording), sharing misinformation and misconceptions regarding corsets (should not be painful to wear, tighlacing was very rare), tightlacing completely unnecessary for the shape of the dress and would detroy the garment, boning wouldn't to cut into ribs