I understand what you're saying... I just think it'll add to the movie experience for us to show more sympathy towards her if she screamed in pain and suffering... and since it's pretty much up to the writer how Kryptonians act or how much emotions to show, I say show it all... look at Zod, plenty of emotion there..
I THINK in the original superman stories Kryptonians were more like vulcans,you could still see Parts of it in later reboots etc....
You may have to look that up to Read more.