The reason I call it out in this movie is because it is so hyped up. The scene when she is falling is VISCERAL, if you listen to the sound effects, I mean there's bone crunching sound in the background, its BRUTAL. They intentionally augment just how nasty the fall sounds.....and then she gets up with barely a scatch.
Its all a matter of degrees and what our collective culture allows. For example, the idea that a human can go through a wall in a martial arts movie and still get up has entered our "cultural delusion". In real life that person has more broken bones than you want to think about, but over enough movies we have just kind of accepted that its okay for a "crazy tough person" to do.
Therefore, if Nat had fallen like a story, maybe bonked her body once....ok that is still crazy from a IRL persepctive, but its still within the realm of plausibility for "heroic action". But that's not we got, it would be like the equivalent of Hawkeye getting punched and knocked through 3 brick walls but landing on a pillow and being "completely fine", the amount of punishment Nat takes in that one scene blows away any cinematic believability. And that's only one scene, there are several others that also completely blow past any measure of heroic toughness straight into the realm of supernatural durability.... its just that the first fall scene is the most egregious
