Not sure what this behavior is called but people will overrate things in their early stages of discovery, such as a genre, medium, or art. And, that is exactly the reason why I chose to reread Harry Potter and the Sorcerer's Stone about a year after I first read it; To test this behavior. The new medium for me was books and turns out I was quite right about overrating things early on.
Having barely read books before, I remember quite liking the first book of the series. On the reread, however, I do not think I would read any of the sequels if I were to judge it based on just this one. While I know the story is good, thanks to the movies and the earlier read, the way it is written is quite bad. The world-building is okay at best, foreshadowing is next to nothing, barely any characters are established, and "Oh, how convenient" felt jarringly strong this time around. It reads no better than fanfiction. And, I do not think the target audience is an excuse enough for how it is written
Not sure if I'll continue to experiment as I feel like it'll only ruin this series for me.