Makes me wonder if it's just that much better because it is so short? I wish there was more of it but at the same time I love it as is so much! I wonder if we would feel the same about it had it been extended further - idk if it would be the same considering the fact that the twist was in the minor details and would have been made more obvious if it was used any more clearly. I think it was a masterpiece on its own as it is - very beautiful while also being concise and detailed. I love how many details to the story are presented visually rather than in words. It does a really good job at keeping the twist visual and almost undetectable until the end that way.
You might be right, more chapters might not have been for the best, it's so rare nowadays to have story that are done well, that when I finally find a good story, I want more :p
So many stories that go for far longer than they should be, but when there's a good stories that deserve more it stop :(.
I am happy this did not go for hundreds of chapters, but I think it could have been as good with a dozen of chapter more for a more developed story, instead of rushing the last few chapters.