It's perhaps the most mature vampire story I've ever seen. But I'm sure I'm biased by the fatherhood aspect. I'm starting to realize that short stories are more situational, seasons-of-life dependent.
So maybe the stories that really grab me now say as much about me or my current situation as anything else. However, that doesn't mean they aren't great. It means that a well-done story that his the right notes for me has more impact.
I think this story hits some deep universals. But maybe if you've never been a parent, those won't hit as hard. Feel free to give your own opinion in the comments.