Ace died because Luffy wanted a reason for the growth and formation of his men, the word Shanks hint at it. In the case of hinami if she dies, we'll see how the top-end of the power of the protagonist did not save one of the most dear to him people from 1 season. So the comparison is disgusting.
if you had literally read a little bit further you'd realize that I wasn't comparing the nature of their circumstances with respect to the protagonist, just the properties of time+confinement. Feel free to feel disgusted over a comparison that was never made, anyway.