How on earth can my teen do a review of The Knife of Never Letting Go?? Kind of spoiler in text.

Ok, so my teen (14) had to choose a book from a list to do a review for an extra curricular academic program and this one by Patrick Ness is what she chose. I read it first and she is about halfway and enjoying it. I thought there were so many plot holes and it was a bit extreme throughout but was interested to see what would happen. I finished it and I’m just annoyed. I didn’t see the plot twist coming so was definitely shocked but overall now I’m so disappointed as it seems like just clickbait in a book.