That's a good point! I think last chapters tend to get a lot of reviews, too.
My most-reviewed chapters that weren't first chapters were also for Curtain Call; there were four of them that tied with 20 reviews each: Chapter 9, Chapter 35, Chapter 45, and Chapter 55. 9 and 55 were both big moments in the story, and 45 was the lead-up to a big moment, so I can understand why those got so many reviews. Not sure why 35 did. It was a cute chapter, but nothing special.