She obviously appears more wounded than she should be, but it may be the best that can be done. You’d also need to remove the hole in her shirt on her back.
I think it’s a far better solution than leaving the stab in though.
I’ve watched it back a few times and it now feels like Sabine has more of an emotional collapse as she sees help arriving. Shin still clearly wins the duel, so that plot point is retained.
It seems to work and I’ll edit out references to the lightsaber injury in the medical bay.